Entrepreneurship, Structural Change and a Global Economic Crisis
T. Gries, W. Naudé, Entrepreneurship Research Journal 1 (2011).

SME performance in transition economies: The financial regulation and firm level corruption nexus
T. Gries, A. Wieneke, Journal of Comparative Economics 39 (2011) 221–229.

Hardness and Non-Approximability of Bregman Clustering Problems.
M.R. Ackermann, J. Blömer, C. Scholz, (2011).

How to Share a Secret
J. Blömer, in: Algorithms Unplugged, Springer Berlin Heidelberg, Berlin, Heidelberg, 2011, pp. 159–168.

Solving the Closest Vector Problem with respect to Lp Norms
J. Blömer, S. Naewe, ArXiv:1104.3720 (2011).

Income Determination and Income Discrimination in Shenzhen
T. Gries, S. Gravemeyer, J. Xue, Urban Studies 48 (2011) 1457–1475.

Financial Deepening, Trade Openness and Economic Growth in Latin America and the Caribbean
T. Gries, M. Kraft, D. Meierrieks, Applied Economics 43 (2011) 4729–4739.

Causal Linkages Between Domestic Terrorism and Economic Growth
T. Gries, T. Krieger, D. Meierrieks, Defence and Peace Economics 22 (2011) 493–508.

Interregional Migration, Self-selection and the Returns to Education in Brazil
T. Gries, M. Kraft, C. Piek, The Annals of Regional Science 46 (2011) 707–732.

Short Signatures from Weaker Assumptions
D. Hofheinz, T. Jager, E. Kiltz, in: Advances in Cryptology - ASIACRYPT 2011 - 17th International Conference on the Theory and Application of Cryptology and Information Security, Seoul, South Korea, December 4-8, 2011. Proceedings, 2011, pp. 647--666.

How to break XML encryption
T. Jager, J. Somorovsky, in: Proceedings of the 18th ACM Conference on Computer and Communications Security, CCS 2011, Chicago, Illinois, USA, October 17-21, 2011, 2011, pp. 413--422.

Bounded Retransmission in Event-B\'70arallelCSP: a Case Study
S. Schneider, H. Treharne, H. Wehrheim, Electr. Notes Theor. Comput. Sci. (2011) 69--80.

Mechanically verified proof obligations for linearizability
J. Derrick, G. Schellhorn, H. Wehrheim, ACM Trans. Program. Lang. Syst. (2011) 4:1--4:43.

ReL: A Generic Refactoring Language for Specification and Execution
T. Ruhroth, H. Wehrheim, S. Ziegert, in: 37th EUROMICRO Conference on Software Engineering and Advanced Applications, SEAA 2011, Oulu, Finland, August 30 - September 2, 2011, 2011, pp. 83--90.

Verifying Linearisability with Potential Linearisation Points
J. Derrick, G. Schellhorn, H. Wehrheim, in: M. J. Butler, W. Schulte (Eds.), FM 2011: Formal Methods - 17th International Symposium on Formal Methods, Limerick, Ireland, June 20-24, 2011. Proceedings, 2011, pp. 323--337.

Sound and Complete Abstract Graph Transformation
D. Steenken, H. Wehrheim, D. Wonisch, in: A. da Silva Sim\'7eao, C. Morgan (Eds.), Formal Methods, Foundations and Applications - 14th Brazilian Symposium, SBMF 2011, S\'7eao Paulo, Brazil, September 26-30, 2011, Revised Selected Papers, 2011, pp. 92--107.

A CSP Account of Event-B Refinement
S. Schneider, H. Treharne, H. Wehrheim, in: J. Derrick, E. A. Boiten, S. Reeves (Eds.), Proceedings 15th International Refinement Workshop, Refine@FM 2011, Limerick, Ireland, 20th June 2011., 2011, pp. 139--154.

Zuverlässigkeitsorientierte Mehrzieloptimierung zur Aktorrekonfiguration eines X-by-wire-Fahrzeugs
C. Sondermann-Wölke, W. Sextro, P. Reinold, A. Trächtler, in: Technische Zuverlässigkeit –TTZ, 2011.

Eine Reduktionsmethode zur Ableitung elektromechanischer Ersatzmodelle für piezoelektrische Wandler unter Verwendung der Finite-Elemente- Methode (FEM)
R. Krol, Eine Reduktionsmethode Zur Ableitung Elektromechanischer Ersatzmodelle Für Piezoelektrische Wandler Unter Verwendung Der Finite-Elemente- Methode (FEM), Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, Band 293, 2011.

Associations between the macronutrient composition of the evening meal and average daily sleep duration in early childhood
K. Diethelm, T. Remer, H. Jilani, C. Kunz, A. Buyken, Clinical Nutrition (2011) 640–646.

Dietary glycaemic index and glycaemic load among Australian children and adolescents
J. Chun Yu Louie, A. Buyken, K. Heyer, V.M. Flood, British Journal of Nutrition (2011) 1273–1282.

Consumption of dietary salt measured by urinary sodium excretion and its association with body weight status in healthy children and adolescents
L. Libuda, M. Kersting, U. Alexy, Public Health Nutrition (2011) 433–441.

24h-Sodium excretion and hydration status in children and adolescents - Results of the DONALD Study
U. Alexy, G. Cheng, L. Libuda, A. Hilbig, M. Kersting, Clinical Nutrition (2011) 78–84.

Ansätze der Übergewichtsprävention durch verbessertes Trinkverhalten im Setting Grundschule
R. Muckelbauer, L. Libuda, K. Clausen, M. Kersting, Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz (2011) 339–348.

Trade Openness and Economic Growth: A Panel Causality Analysis
T. Gries, M. Redlin, Trade Openness and Economic Growth: A Panel Causality Analysis, Paderborn University, CIE Center for International Economics, 2011.

Perspektiven Digitaler Musikeditionen aus der Sicht des Edirom-Projekts
B. Bohl, J. Kepper, D. Röwenstrunk, DIE TONKUNST 5 (2011) 270–276.

Fluids and children’s health. 
R. Muckelbauer, L. Libuda, M. Kersting, in: Developing Children´s Food Products., Woodhead Publishing Limited , 2011.

Multi-touch, tangible and pen-based interaction in incident planning
K. Nebe, H.G. Fischer, F. Klompmaker, H. Jung, in: Oldenbourg Wissenschaftsverlag GmbH, M  "u nchen, 2011, pp. 263–273.

Virtual Learning Spaces for Co-Active Learning
R. Keil, H. Selke, in: Proc. of Int. Conf. on Improving University Teaching, 2011, pp. 191–202.

Multi-Touch Interaction for Disaster Management.
V. Paelke, K. Nebe, F. Klompmaker, H. Jung, in: 2011.

Hypothesis- guided technology design as the basis of contextual computer science
R. Keil, in: A. Breiter, M. Wind (Eds.), Lit Verlag, M \'22 u nster, 2011, pp. 165–184.

Smart Fiducials: Advanced Tangible Interaction Techniques through Dynamic Visual Paterns
F. Klompmaker,  Karsten Nebe, H. Jung, in: 2011.

User Centered Design Process of OSAMI-D: Developing User Interfaces for a Remote Ergometer Training Application
F. Klompmaker,  Karsten Nebe, C.  Busch,  Detlev Willemsen, in: Proceedings of the International Conference on Health Informatics, 2011.

KoProV: A Learning Approach for Coordinated Learning of Modeling and Simulation Based on Knowledge Modules
C. Laroque, J. Schulte, in: M.I. Chinni, D. Weed (Eds.), Proceedings of the 2011 Spring Simulation Multiconference, 2011.

WasabiBeans - Web Application Services and Business Integration
J. Schulte, in: R. Zhang, J. Cordeiro, X.  Li, Z. Zhang, J. Zhang (Eds.), Proceedings of the 13th International Conference on Enterprise Information Systems, SciTePress - Science and Technology Publications, Beijing, China, 2011, pp. 348–357.

Computer scientists, ergonomists and chemists are shaping the future. E-Portofolios support  "u the flow rate in education and training
S. Rudolph, D. Niehus, in: Universit \'22 a t Paderborn, 2011.

Koi School - Towards the Next Level of Communication, Organization and Integration in Education
J. Schulte, R. Keil, D. Klaholt, J. Sauer, in: R. Zhang, J. Cordeiro, X. Li, Z. Zhang, J. Zhang (Eds.), Proceedings of the 13th International Conference on Enterprise Information Systems, SciTePress - Science and Technology Publications, Beijing, China, 2011, pp. 43–52.

Support  "u support of the co-active research discourse through synergies between e-learning and e-science
J. Schulte, R. Keil, A. Oberhoff, in: Th. K  "o hler, J. Neumann (Eds.), Waxmann Verlag, M   "u nster, 2011.

Laboratory 2.0 - Towards and Integrated Research Environment for Engineering Mechanics
J. Schulte, R. Keil, J. Rybka, F. Ferber, in: R. Zhang, J. Cordeiro, X. Li, Z. Zhang, J. Zhang (Eds.), Proceedings of the 13th International Conference on Enterprise Information Systems, SciTePress - Science and Technology Publications, Bejing, China, 2011, pp. 407–412.

KoForum - Cooperative research environment for  "u for cross-organizational scientific Laboratory work
J. Schulte, J. Rybka, F. Ferber, R. Keil, in:  Th. K  "o hler, J. Neumann (Eds.), Waxmann Verlag, M  "u nster, 2011, pp. 92–101.

Semantic Positioning - Supporting Knowledge Work through Semantic Spatial Arrangements
P. Erren, Semantic Positioning - Supporting Knowledge Work through Semantic Spatial Arrangements, Heinz Nixdorf Institut, Universit\'22at Paderborn, 2011.

A Holistic Model for Integrating Usability Engineering and Software Engineering Enriched with Marketing Activities
H.G. Fischer,  Karsten Nebe,  Florian Klompmaker, (2011) 28–37.

Authenticated entries on multi-touch tables
H. Jung, K. Nebe, F.  Klompmaker, H.G. Fischer, in: Oldenbourg Wissenschaftsverlag GmbH, M  "u nchen, 2011, pp. 305–308.

Exploiting New Interaction Techniques for Disaster Control Management using Multitouch-, Tangible- and Pen-based-Interaction
Karsten Nebe, F. Klompmaker, H. Jung, H.G. Fischer, (2011) 100–109.

Der Qualit  "a tsstandard f \'22 u r Usability engineering of the German UPA: Current status of the work
H.G. Fischer, C. Bogner, T. Geis, K. Polkehn,  Dirk  Zimmermann, in: German UPA, 2011, pp. 72–74.

The Impact of Delegating Decision Making to IT on the Sunk Cost Effect
P. Herrmann, D. Kundisch, M. Rahman, in: 12th Workshop on Information Systems and Economics (WISE), 2011.

Sunk Cost Effect: The Impact of Delegating Decision Making to IT
P. Herrmann, D. Kundisch, M. Rahman, in: INFORMS 2011 Annual Meeting, Track Digital Channel and It Usage, 2011.

Prepubertal Glucocorticoid Status and Pubertal Timing
L. Shi, S.A. Wudy, A. Buyken, C. Maser-Gluth, M.F. Hartmann, T. Remer, The Journal of Clinical Endocrinology &; Metabolism (2011) 1–8.

Longitudinal associations between reported sleep duration in early childhood and the development of body mass index, fat mass index and fat free mass index until age 7
K. Diethelm, K. Bolzenius, G. Cheng, T. Remer, A. Buyken, International Journal of Pediatric Obesity (2011) e114–e123.

Sunk Cost Effect: The Impact of Delegating Decision Making to IT
P. Herrmann, D. Kundisch, M. Rahman, in: 7th Symposium on Statistical Challenges in Electronic Commerce Research, 2011.

A new Perspective on Resource Interactions in IT/IS Project Portfolio Selection
D. Kundisch, C. Meier, in: Proceedings of the European Conference on Information Systems (ECIS), 2011.

Consumption of polyunsaturated fatty acids, fish, and nuts and risk of inflammatory disease mortality
B. Gopinath, A. Buyken, V.M. Flood, M. Empson, E. Rochtchina, P. Mitchell, The American Journal of Clinical Nutrition (2011) 1073–1079.

Association of dietary energy density in childhood with age and body fatness at the onset of the pubertal growth spurt
A.L.B. Günther, L.J. Stahl, A. Buyken, A. Kroke, British Journal of Nutrition (2011) 345–349.

The Impact of Interaction Effects Among Software Development Projects on Global Sourcing Decisions
B. Heinrich, D. Kundisch, S. Zimmermann, in: 5th Global Sourcing Workshop, 2011.

Regional and socio-economic differences in food, nutrient and supplement intake in school-age children in Germany: results from the GINIplus and the LISAplus studies
S. Sausenthaler, M. Standl, A. Buyken, P. Rzehak, S. Koletzko, C.P. Bauer, B. Schaaf, A. von Berg, D. Berdel, M. Borte, O. Herbarth, I. Lehmann, U. Krämer, H.-E. Wichmann, J. Heinrich, Public Health Nutrition (2011) 1724–1735.

IT/IS Project Portfolio Selection in the Presence of Project Interactions  - Review and Synthesis of the Literature
D. Kundisch, C. Meier, in: Wirtschaftsinformatik Proceedings, 2011, pp. 477–486.

Prevention strategies for type 2 diabetes should be based on evidence-based medical nutrition data. Reply to Uusitupa M, Lindström J, Tuomilehto J [letter]
A. Buyken, P. Mitchell, A. Ceriello, J. Brand-Miller, Diabetologia (2011) 2471–2472.

Partizipieren statt konsumieren, oder: Lohnt sich Engagement in Q&A-Communities?
P. Herrmann, D. Kundisch, in: Wirtschaftsinformatik Proceedings, 2011, pp. 1022–1031.

The glycemic index issue
J. Brand-Miller, A. Buyken, Current Opinion in Lipidology (2011) 62–67.

Den Umgang mit Geld und Konsum lernen – Verbraucherbildung in der Schule
K. Schlegel-Matthies, Stimme der Familie  58 (2011) 3–6.

Was ist Verbraucherbildung? – Was kann sie leisten?
K. Schlegel-Matthies, Haushalt &; Bildung  88 (2011) 3–10.

A Social Media Customer Service
M. Geierhos, Y.S. Lee, J. Schuster, D. Kobothanassi, M. Bargel, in: P. De Bra, K. Grønbæk (Eds.), Proceedings of the 22nd ACM Conference on Hypertext and Hypermedia, ACM, New York, NY, USA, 2011.

SCM - A Simple, Modular and Flexible Customer Interaction Management System
J. Schuster, Y.S. Lee, D. Kobothanassi, M. Bargel, M. Geierhos, in: International Conference on Information Society (i-Society 2011), IEEE, Piscataway, NJ, USA, 2011, pp. 153–158.

Buy, Sell, or Hold? Information Extraction from Stock Analyst Reports
Y.S. Lee, M. Geierhos, in: M. Beigl, H. Christiansen, T.R. Roth-Berghofer, A. Kofod-Petersen, K.R. Coventry, H.R. Schmidtke (Eds.), Modeling and Using Context: 7th International and Interdisciplinary Conference, CONTEXT 2011, Karlsruhe, Germany, September 26-30, 2011, Proceedings, Springer, Berlin, Germany, 2011, pp. 173–184.

Processing Multilingual Customer Contacts via Social Media
M. Geierhos, Y.S. Lee, M. Bargel, in: H. Hedeland, T. Schmidt, K. Wörner (Eds.), Multilingual Resources, Multilingual Applications: Proceedings of the Conference of the German Society for Computational Linguistics and Language Technology (GSCL) 2011, University of Hamburg, Hamburg, Germany, 2011, pp. 219–222.

Towards Multilingual Biographical Event Extraction
M. Geierhos, J.-L. Bouraoui, P. Watrin, in: H. Hedeland, T. Schmidt, K. Wörner (Eds.), Multilingual Resources, Multilingual Applications. Proceedings of the Conference of the German Society for Computational Linguistics and Language Technology (GSCL) 2011, University of Hamburg, Hamburg, Germany, 2011, pp. 45–50.

Customer Interaction 2.0: Adopting Social Media as Customer Service Channel
M. Geierhos, Journal of Advances in Information Technology 2 (2011) 222–233.

PM-IRRAS studies of the adsorption and stability of organophosphonate monolayers on passivated NiTi surfaces
M. Maxisch, C. Ebbert, B. Torun, N. Fink, T. de los Arcos, J. Lackmann, H.J. Maier, G. Grundmeier, APPLIED SURFACE SCIENCE 257 (2011) 2011–2018.

Automatic Validation and Correction of Formalized, Textual Requirements
J. Holtmann, J. Meyer, M. von Detten, in: 2011 IEEE Fourth International Conference on Software Testing, Verification and Validation Workshops, 2011.

Eine durchgängige Entwicklungsmethode von der Systemarchitektur bis zur Softwarearchitektur mit AUTOSAR
J. Meyer, J. Holtmann, in: Tagungsband Des Dagstuhl-Workshop MBEES: Modellbasierte Entwicklung Eingebetteter Systeme VII, fortiss GmbH, 2011, pp. 21–30.

Interpreting Story Diagrams for the Static Detection of Software Patterns
M. Fockel, D. Travkin, M. von Detten, in: Proceedings of the 8th International Fujaba Days, University of Tartu, Estonia, 2011.

From quantum pulse gate to quantum pulse shaper—engineered frequency conversion in nonlinear optical waveguides
B. Brecht, A. Eckstein, A. Christ, H. Suche, C. Silberhorn, New Journal of Physics 13 (2011).

A quantum pulse gate based on spectrally engineered sum frequency generation
A. Eckstein, B. Brecht, C. Silberhorn, Optics Express 19 (2011).

Controlling the correlations in frequency upconversion in PPLN and PPKTP waveguides
B. Brecht, A. Eckstein, C. Silberhorn, Physica Status Solidi (C) 8 (2011) 1235–1238.

Experimentelle Untersuchung und Simulation des Crashverhaltens mechanisch gefügter Verbindungen
D. Hein, G. Meschut, O. Hahn, in: FOSTA, EFB, DVS (Ed.), 1. Fügetechnisches Gemeinschaftskolloquium, 2011.

A graphene-based broadband optical modulator
M. Liu, X. Yin, E. Ulin-Avila, B. Geng, T. Zentgraf, L. Ju, F. Wang, X. Zhang, Nature 474 (2011) 64–67.

Towards the Origin of the Nonlinear Response in Hybrid Plasmonic Systems
T. Utikal, T. Zentgraf, T. Paul, C. Rockstuhl, F. Lederer, M. Lippitz, H. Giessen, Physical Review Letters 106 (2011).

Development of Bulk Optical Negative Index Fishnet Metamaterials: Achieving a Low-Loss and Broadband Response Through Coupling
J. Valentine, S. Zhang, T. Zentgraf, X. Zhang, Proceedings of the IEEE 99 (2011) 1682–1690.

Plasmonic Luneburg and Eaton lenses
T. Zentgraf, Y. Liu, M.H. Mikkelsen, J. Valentine, X. Zhang, Nature Nanotechnology 6 (2011) 151–155.

Einführung eines prozessorientierten Campusmanagement an der Universität Paderborn – ein Erfahrungsbericht
G. Oevel, M. Toschläger, in: A. Degkwitz, F. Klapper (Eds.), Prozessorientierte Hochschule, Bock + Herchen, Bad Honnef, 2011.

Vom Studiolo zur virtuellen Forschungsumgebung
A. Brennecke, G. Oevel, A. Strothmann, in: P. Müller, B. Neumair, G. Dreo Rodosek (Eds.), 4. DFN-Forum Kommunikationstechnologien – Beiträge der Fachtagung 20./21.6.2011 Bonn, Gesellschaft für Informatik, Bonn, 2011, pp. 69–78.

Approximative occlusion culling using the hull tree
T. Suess, C. Koch, C. Jähn, M. Fischer, in: S. Brooks, P. Irani (Eds.), Proceedings of the Graphics Interface 2011 Conference, May 25-27, St. John’s, Newfoundland, Canada, Canadian Human-Computer Communications Society, 2011, pp. 79--86.

Simulation aided, knowledge based routing for AGVs in a distribution warehouse
A. Klaas, C. Laroque, W. Dangelmaier, M. Fischer, in: Proceedings of the 2011 Winter Simulation Conference (WSC), 2011.

Ein paralleles Out-of-Core Renderingsystem für Standard-Rechnernetze
T. Suess, C. Jähn, M. Fischer, F. Meyer auf der Heide, C. Koch, in: Augmented &; Virtual Reality in Der Produktentstehung, Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, 2011, pp. 185--197.

Parallel Real-Time Rendering using Heterogeneous PC Clusters
T. Suess, Parallel Real-Time Rendering Using Heterogeneous PC Clusters, Universität Paderborn, 2011.

Adjective complementation by that-clauses: An empirical study
I. Mindt, Adjective Complementation by That-Clauses: An Empirical Study, Benjamins, Amsterdam, 2011.

Corpus Linguistics and the Description of English
I. Mindt, H. Lindquist, ICAME Journal 35 (2011) 242–247.

Anglistische Korpuslinguistik. Eine  	Einführung. Grundlagen der Anglistik und Amerikanistik 33
I. Mindt, J. Mukherjee, in: Anglistik. International Journal of English Studies, 22, 1, Erich Schmidt Verlag, 2009, Berlin, 2011, pp. 205–206.

Competitive and Fair Medium Access Despite Reactive Jamming
A. W. Richa, C. Scheideler, S. Schmid, J. Zhang, in: 2011 International Conference on Distributed Computing Systems, ICDCS 2011, Minneapolis, Minnesota, USA, June 20-24, 2011, IEEE Computer Society, 2011, pp. 507--516.

Towards jamming-resistant and competitive medium access in the SINR model
A. W. Richa, C. Scheideler, S. Schmid, J. Zhang, in: Proceedings of the 3rd ACM Workshop on Wireless of the Students, by the Students, for the Students, @MOBICOM 2011, Las Vegas, NV, USA, September 19 - 23, 2011, ACM, 2011, pp. 33--36.

Self-stabilizing leader election for single-hop wireless networks despite jamming
A. W. Richa, C. Scheideler, S. Schmid, J. Zhang, in: Proceedings of the 12th ACM Interational Symposium on Mobile Ad Hoc Networking and Computing, MobiHoc 2011, Paris, France, May 16-20, 2011, ACM, 2011, p. 15.

Re-Chord: a self-stabilizing chord overlay network
S. Kniesburges, A. Koutsopoulos, C. Scheideler, in: SPAA 2011: Proceedings of the 23rd Annual ACM Symposium on Parallelism in Algorithms and Architectures, San Jose, CA, USA, June 4-6, 2011 (Co-Located with FCRC 2011), 2011, pp. 235--244.

Algorithms for Dynamic Geometric Data Streams
G. Frahling, Algorithms for Dynamic Geometric Data Streams, Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, 2011.

Power-Aware Online File Allocation in Dynamic Networks
J. Mehler, Power-Aware Online File Allocation in Dynamic Networks, Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, 2011.

Peer-to-Peer Based Parallel Web Computing
J. Gehweiler, Peer-to-Peer Based Parallel Web Computing, Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, 2011.

Hashed Patricia Trie: Efficient Longest Prefix Matching in Peer-to-Peer Systems
S. Kniesburges, C. Scheideler, in: WALCOM: Algorithms and Computation - 5th International Workshop, WALCOM 2011, New Delhi, India, February 18-20, 2011. Proceedings, Springer, 2011, pp. 170--181.

Programming for Distributed Computing: From Physical to Logical Networks
C. Scheideler, K. Graffi, in: Computer Science, The Hardware, Software and Heart of It, Springer, 2011, pp. 155--168.

Der Kanonenbischof Christoph Bernhard von Galen und seine retrospektiven Baumaßnahmen
E.-M. Seng, in: M. Menne, M. Ströhmer (Eds.), Total Regional. Studien zur frühneuzeitlichen Sozial- und Wirtschaftsgeschichte, FS für Frank Göttmann, Regensburg, 2011, pp. 129–148.

Dekor und Kirchenbau
E.-M. Seng, kunst und kirche. Ökumenische Zeitschrift für zeitgenössische Kunst und Architektur H.2 (2011) 50–53.

Kulturlandschaften: Die Rückgewinnung des immateriellen Kulturerbes in die Landschaft
E.-M. Seng, in: L. Klevesath (Ed.), Demokratie – Kultur – Moderne. Perspektiven der Politischen Theorie, FS für Walter Reese-Schäfer, München, 2011, pp. 201–220.