Engels, G., H. Reussner, R., Momm, C., &; Sauer, S. (Eds.). (2009). Proceedings of Design for Future - 1. Workshop des GI-Arbeitskreises “Langlebige Softwaresysteme (L2)” (Vol. 537). Karlsruhe.
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Eggert, A., Henseler, J., &; Hollmann, S. (2009). Who Owns the Customer? Disentangling Customer Loyalty in Indirect Distribution Channels. In Proceedings of the 17th International Colloquium in Relationship Marketing.
LibreCat: /record/7857

Woisetschläger, D., Garnefeld, I., &; Eggert, A. (2009). Can Successful Customer Acquisition Hurt the Existing Customer Base? In Proceedings of the 2009 AMA Summer Marketing Educators’ Conference.
LibreCat: /record/7866

Garnefeld, I., Münkhoff, E., Hogreve, J., &; Eggert, A. (2009). Referral reward programs: New customer acquisition by opportunism? In Proceedings of the 15th Academy of Marketing Science (AMS) World Marketing Congress.
LibreCat: /record/7867

Eggert, A., &; Ulaga, W. (2009). Musing on a Decade of Customer Value Research in Business Relationships: Where Do We Come From? Where Should We Go? In Proceedings of the 4th International Conference on Business Market Management.
LibreCat: /record/7868

Garnefeld, I., Helm, S., Tax, S., &; Eggert, A. (2009). Customer Referral Programs and Customer Retention – Do Rewards Undermine the Retention Effect? In Proceedings of the 2009 AMA Winter Educators’ Proceedings.
LibreCat: /record/7869

Garnefeld, I., Münkhoff, E., Hogreve, J., &; Eggert, A. (2009). Unintended effects of referral reward programs: Exploring the impact of rewards on opportunistic behavior. In Proceedings of the 38th European Marketing Academy (EMAC) Conference.
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Eggert, A., Henseler, J., &; Hollmann, S. (2009). Who Owns the Customer? Exploring Customer Loyalty in a Channel Context. In Proceedings of the 38th European Marketing Academy (EMAC) Conference.
LibreCat: /record/7871

Buchholz, S. S., Fischer, S. F., Kunze, U., Reuter, D., &; Wieck, A. D. (2009). Nonlocal Aharonov–Bohm conductance oscillations in an asymmetric quantum ring. Applied Physics Letters, 94(2).https://doi.org/10.1063/1.3069281 
LibreCat: /record/7973
DOI: 10.1063/1.3069281

Gerth, C., Küster, J., &; Engels, G. (2009). Language-Independent Change Management of Process Models. In Proceedings of the ACM/IEEE 12th International Conference on Model Driven Engineering Languages and Systems (MODELS’09). Denver (CO, USA) (Vol. 5795, pp. 152–166). Berlin/Heidelberg: Springer.http://dx.doi.org/10.1007/978-3-642-04425-0_12 
LibreCat: /record/8009
DOI: http://dx.doi.org/10.1007/978-3-642-04425-0_12

Assmann, M., Haack, M., Scheider, H., vom Hagen, N., &; Zacharias, R. (2009). SOA-Business Case. In Transform IT: Optimale Geschäftsprozesse durch eine transformierende IT (pp. 97–126). Wiesbaden, Deutschland: Gabler.
LibreCat: /record/8010

Baumann, A., Engels, G., Hofmann, A., Sauer, S., &; Willkomm, J. (2009). A Holistic Software Engineering Method for Service-Oriented Application Landscape Development. In Proceedings of the First NAF Academy Working Conference on Practice-Driven Research on Enterprise Transformation (PRET 2009), Amsterdam (The Netherlands) (Vol. 28, pp. 1–17). Berlin/Heidelberg: Springer.http://dx.doi.org/10.1007/978-3-642-01859-6 
LibreCat: /record/8011
DOI: http://dx.doi.org/10.1007/978-3-642-01859-6

Meixner, G., Görlich, D., Breiner, K., Hußmann, H., Pleuß, A., Sauer, S., &; Van den Bergh, J. (2009). Model Driven Development of Advanced User Interfaces 2009. In Proceedings of the 2009 International Conference on Intelligent User Interfaces (pp. 503–504). New York, NY, USA: ACM Press.http://doi.acm.org/10.1145/1502650.1502737 
LibreCat: /record/8012
DOI: http://doi.acm.org/10.1145/1502650.1502737

Küster, J., Gerth, C., &; Engels, G. (2009). Dependent and Conflicting Change Operations of Process Models. In Proceedings of the 5th European Conference on Model-Driven Architecture Foundations and Applications (ECMDA-FA’09) (Vol. 5562, pp. 158–173). Berlin/Heidelberg: Springer.http://dx.doi.org/10.1007/978-3-642-02674-4_12 
LibreCat: /record/8013
DOI: http://dx.doi.org/10.1007/978-3-642-02674-4_12

Engels, G., Geisen, S., Sauer, S., &; Port, O. (2009). Sicherstellen der Betrachtung von nicht-funktionalen Anforderungen in SCRUM-Prozessen durch Etablierung von Feedback. In Informatik 2009 - Im Focus das Leben (Vol. 154, p. 458). Bonn: Gesellschaft für Informatik (GI).
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Salger, F., Sauer, S., &; Engels, G. (2009). Integrated Specification and Quality Assurance for Large Business Information Systems. In Proceedings of the 2nd India Software Engineering Conference (ISEC’09) (pp. 129–130). New York, NY, USA: ACM Press.
LibreCat: /record/8015

Güldali, B., Mlynarski, M., Wübbeke, A., &; Engels, G. (2009). Model-Based System Testing Using Visual Contracts. In Proceedings of Euromicro SEAA Conference 2009, Special Session on “Model Driven Engineering” (pp. 121–124). Washington, DC, USA: IEEE Computer Society.
LibreCat: /record/8016

Mlynarski, M., &; Jureczko, M. (2009). Zautomatyzowane testy akceptacyjne dla aplikacji internetowych w programowaniu sterowanym testami. In Proceedings of Krajowa Konferencja In?ynierii Oprogramowania 2009 (Vol. 3, pp. 294–305). Wydawnictwo Komunikacji if??czno?ci.
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Schattkowsky, T., &; Xie, T. (2009). A UML Framework for IP-XACT-based IP Management. In Proceedings of the conference on Design Automation and Test in Europe (DATE 2009), Nice (France) (pp. 238–243). Washington, DC, USA: IEEE Computer Society.
LibreCat: /record/8018

Soltenborn, C., &; Engels, G. (2009). Towards Test-Driven Semantics Specification. In Proceedings of the 12th International Conference on Model Driven Engineering Languages and Systems (MODELS 2009), Denver, Colorado (USA) (Vol. 5795, pp. 378–392). Berlin/Heidelberg: Springer.http://dx.doi.org/10.1007/978-3-642-04425-0_30 
LibreCat: /record/8019
DOI: http://dx.doi.org/10.1007/978-3-642-04425-0_30