@inproceedings{21218,
  author       = {{Bye, C. and Draht, T. and Küting, J. and Lübbers, R. and Meschut, Gerson and Ruther, M.}},
  booktitle    = {{Tagungsband zum 11. Paderborner Symposium Fügetechnik „Mechanisches Fügen und Kleben“}},
  isbn         = {{ISBN 3-9809524-I-X}},
  location     = {{Paderborn}},
  pages        = {{22--43}},
  title        = {{{Fügen von Kunststoffen im strukturellen Leichtbau}}},
  year         = {{2004}},
}

@inbook{19143,
  author       = {{Seng, Eva- Maria}},
  booktitle    = {{Katalog der Landeskunstausstellung Sachsen-Anhalts in Magdeburg 2004}},
  title        = {{{Einleitung „in der zeit“ – kunst aus sachsen-anhalt 2004}}},
  year         = {{2004}},
}

@inproceedings{18279,
  abstract     = {{For $c in REAL$, a $c$-spanner is a subgraph of a complete Euclidean graph satisfying that between any two vertices there exists a path of weighted length at most $c$ times their geometric distance. Based on this property to approximate a complete weighted graph, sparse spanners have found many applications, e.g., in FPTAS, geometric searching, and radio networks. For geometric searching, it turned out to suffice whether the radius rather than the length of some path between any two vertices is bounded relatively to their geometric distance; this is the defining property of weak spanners. Finally regarding radio network applications, a power spanner accounts for the total energy afforded for a wireless transmission with the requirement that the sum of the squares of the lengths of some path between any two planar vertices must be bounded relatively to the square of their geometric distance (or higher powers up to 6 or even 8).<br><br>While it is known that any $c$-spanner is also both a weak $C_1$-spanner and a $C_2$-power spanner (for appropriate $C_1,C_2$ depending only on $c$ but not on the graph under consideration), we show that the converse fails: There exists a family of $c_1$-power spanners that are no weak $C$-spanners and also a family of weak $c_2$-spanners that are no $C$-spanners for any fixed $C$ (and thus no uniform spanners, either). However the deepest result of the present work reveals that, surprisingly, any weak spanner is also a uniform power spanner. We further generalize the latter notion by considering $(c,delta)$-power spanners where the sum of the $delta$-th powers of the lengths has to be bounded; so $(cdot,2)$-power spanners coincide with the usual power spanners and $(cdot,1)$-power spanners are classical spanners. Interestingly, these $(cdot,delta)$-power spanners form a strict hierarchy where the above results still hold for any $deltageq2$; some even hold for $delta>1$ while counterexamples reveal others to fail for $delta<2$. In fact we show that in general every self-similar curve of fractal dimension $d>delta$ is no $(C,delta)$-power spanner for any fixed $C$. }},
  author       = {{Schindelhauer, Christian and Volbert, Klaus and Ziegler, Martin}},
  booktitle    = {{Proc. of 15th Annual International Symposium on Algorithms and Computation (ISAAC'04)}},
  isbn         = {{9783540241317}},
  issn         = {{0302-9743}},
  pages        = {{805--821}},
  publisher    = {{Springer }},
  title        = {{{Spanners, Weak Spanners, and Power Spanners for Wireless Networks}}},
  doi          = {{10.1007/978-3-540-30551-4_69}},
  volume       = {{3341}},
  year         = {{2004}},
}

@inproceedings{854,
  author       = {{Frank, Christian and Karl, Holger}},
  booktitle    = {{Proceedings of the 7th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2004, Venice, Italy, October 4-6, 2004}},
  pages        = {{105----114}},
  title        = {{{Consistency challenges of service discovery in mobile ad hoc networks}}},
  doi          = {{10.1145/1023663.1023684}},
  year         = {{2004}},
}

@phdthesis{30441,
  author       = {{Schulte, T.}},
  isbn         = {{978-3-18-336321-6}},
  title        = {{{Stromrichter- und Regelungskonzepte für Ultraschall-Wanderwellenmotoren}}},
  year         = {{2004}},
}

@inbook{34942,
  author       = {{Süßmann, Johannes}},
  booktitle    = {{De-Marginalisierungen. Geschenkschrift für Gisela Engel zum 60. Geburtstag}},
  editor       = {{Karafyllis, Nicole C. and Krohmer, Tobias and Schirrmeister, Albert and Söll, Änne and Wilkens, Astrid}},
  isbn         = {{978-3-89626-488-6}},
  pages        = {{27–44}},
  publisher    = {{trafo}},
  title        = {{{Geschichte der Sieger? Zu Walter Benjamins These von der Parteilichkeit des Historismus}}},
  year         = {{2004}},
}

@inbook{34783,
  author       = {{Süßmann, Johannes}},
  booktitle    = {{Geschichtsschreibung zu Beginn des 19. Jahrhunderts im Umkreis Johannes von Müllers und des Groupe de Coppet. L’historiographie à l’aube du XIXe siècle autour de Jean de Müller et du Groupe de Coppet. Textes allemands réunis par Doris et Peter Walser-Wilhelm. Textes français et édition du volume réalisée par Marianne Berlinger Konqui }},
  isbn         = {{2-7453-1220-0}},
  keywords     = {{Müller, Johannes von, Gatterer, Johann Christoph, Eidgenossenschaft}},
  pages        = {{79–109}},
  publisher    = {{Honoré Champion}},
  title        = {{{Darstellungsprinzipien in Johannes von Müllers erstem Geschichtswerk}}},
  volume       = {{6}},
  year         = {{2004}},
}

@misc{34776,
  author       = {{Süßmann, Johannes}},
  booktitle    = {{sehepunkte}},
  keywords     = {{Schönborn, Johann Philipp von Schönborn, Lothar Franz von Schönborn, Leibniz, Kurmainz, Gesetzgebung, Kulturpatronage}},
  number       = {{2}},
  title        = {{{[Rez. v.] Peter Claus Hartmann (Hg.): Die Mainzer Kurfürsten des Hauses Schönborn als Reichserzkanzler und Landesherren. Bern, Frankfurt/M. 2002}}},
  volume       = {{4}},
  year         = {{2004}},
}

@misc{34777,
  author       = {{Süßmann, Johannes}},
  booktitle    = {{sehepunkte}},
  keywords     = {{Tiepolo, Giovanni Battista, Würzburger Residenz, Reichsidee}},
  number       = {{11}},
  title        = {{{[Rez. v.] Peter Stephan: »Im Glanz der Majestät des Reiches« – Tiepolo und die Würzburger Residenz [...]. Weißenhorn. Anton H. Konrad 2003}}},
  volume       = {{4}},
  year         = {{2004}},
}

@inbook{36153,
  author       = {{Kamp, Hermann}},
  booktitle    = {{L’intercession du Moyen Age au Temps modernes}},
  editor       = {{Moeglin, Jean-Marie}},
  pages        = {{67--87}},
  title        = {{{L’intercession dans les relations politiques au Moyen Age classique}}},
  year         = {{2004}},
}

@misc{48825,
  author       = {{Hartung, Olaf}},
  booktitle    = {{Das Historisch-Politische Buch}},
  issn         = {{2567-3181}},
  pages        = {{332}},
  publisher    = {{Duncker & Humblot; Ranke-Gesellschaft – Vereinigung für Geschichte im öffentlichen Leben e.V. von Jürgen Elvert}},
  title        = {{{Rezension von Jan-Holger Kirsch: Nationaler Mythos oder historische Trauer? Der Streit um ein zentrales „Holocaust-Mahnmal“ für die Berliner Republik, Köln 2003}}},
  volume       = {{52}},
  year         = {{2004}},
}

@inbook{48763,
  author       = {{Hartung, Olaf}},
  booktitle    = {{Migration und Fremdverstehen. Geschichtsunterricht und Geschichtskultur in der multiethnischen Gesellschaft}},
  editor       = {{Alavi, Bettina and Henke-Bockschatz, Gerhard}},
  isbn         = {{3824803755}},
  pages        = {{249--258}},
  publisher    = {{Schulz-Kirchner Verlag}},
  title        = {{{Museen zwischen Demokratie und Diktatur. Zur „Gleichschaltung“ der Museumsdidaktik am Beispiel des Verkehrsmuseums in Nürnberg und des Bergbaumuseums in Bochum}}},
  volume       = {{16}},
  year         = {{2004}},
}

@inbook{46449,
  author       = {{Topalović, Elvira}},
  booktitle    = {{Jahrbuch 20, Augustin Wibbelt-Gesellschaft e.V.}},
  isbn         = {{3-89534-580-6}},
  title        = {{{„Ick kike in die Stern vndt versake Gott den herrn“. Versprachlichung des Teufelspaktes in westfälischen Verhörprotokollen des 16./17. Jahrhunderts.}}},
  year         = {{2004}},
}

@inbook{53488,
  author       = {{Englisch, Brigitte}},
  booktitle    = {{Alcuin de York à Tours. Écriture, pouvoire et réseau dan léurope du haut moyen âge}},
  pages        = {{163--174}},
  title        = {{{Alkuin und das Quadrivium in der Karolingerzeit}}},
  volume       = {{3}},
  year         = {{2004}},
}

@article{53465,
  author       = {{Englisch, Brigitte}},
  journal      = {{Forschungsforum der Universität Paderborn}},
  pages        = {{42--46}},
  title        = {{{Der Apokalypsenkommentar des Beatus von Liébana ‑  Informationsverarbeitung im frühen und hohen Mittelalter}}},
  volume       = {{7}},
  year         = {{2004}},
}

@inbook{52507,
  author       = {{Meyer-Hamme, Johannes and Bauer, Jan}},
  booktitle    = {{Geschichtsdidaktische Lehrplanforschung. Methoden – Analysen – Perspektiven.}},
  editor       = {{Handro, Saskia and Schönemann, Bernd}},
  isbn         = {{ 978-3-8258-7847-3}},
  pages        = {{103--117}},
  title        = {{{Der Hamburger Rahmenplan Geschichte 2002 – Anregungen zu reflektiertem und (selbst)reflexiven Geschichtsbewusstsein?}}},
  year         = {{2004}},
}

@inbook{52508,
  author       = {{von Borries, Bodo and Meyer-Hamme, Johannes}},
  booktitle    = {{Geschichtsdidaktische Lehrplanforschung. Methoden – Analysen – Perspektiven}},
  editor       = {{Handro, Saskia and Schönemann, Bernd}},
  isbn         = {{978-3-8258-7847-3}},
  pages        = {{235--249}},
  title        = {{{Lehrervorstellungen und Lehrerüberzeugungen zu Richtlinien und Lehrplänen des Faches Geschichte.}}},
  year         = {{2004}},
}

@misc{18483,
  author       = {{Peckhaus, Volker}},
  booktitle    = {{zbMATH Open, Zbl. 1026.03006}},
  title        = {{{Tomassi, Paul, “Logic after Wittgenstein”, Nordic Journal of Philosophical Logic 6 (2001), 43–70}}},
  year         = {{2004}},
}

@inproceedings{42447,
  author       = {{Fuchs, Christian and Hofkirchner, Wolfgang}},
  booktitle    = {{Sign Processes in Complex Systems. Proceedings of the 7th International Congress of the IASS-AIS}},
  editor       = {{Schmitz, Walter}},
  isbn         = {{3-933592-21-6}},
  publisher    = {{Thelem}},
  title        = {{{Information in Social Systems}}},
  year         = {{2004}},
}

@inbook{43274,
  abstract     = {{Experimental results on the nonlinear optical properties of semiconductors are compared with microscopic calculations which include Coulomb many-body correlations at different levels. One aim of this chapter is to show that microscopic theories, which have been developed for bare semiconductor heterostructures, are also able to describe semiconductor microcavities very well. Therefore, there is no need to phenomenologically introduce polariton-polariton interactions and parametric scattering of cavity polaritons to describe microcavity experiments, but instead a fully microscopic theory based on a Fermionic electron-hole Hamiltonian can be used.

The treatment of many-body correlations using the second-order Born approximation and the dynamics-controlled truncation scheme are introduced and analyzed for bare heterostructures. These approaches are able to successfully explain a number of important experimental results which originate from the dynamics of many-body correlations.

Then measurements of the nonlinear optical properties of a quantum-well microcavity are described. In these experiments the spectrally- and temporally-resolved nonlinear optical response is studied in detail using a pump-probe geometry. In particular, the polarization and intensity dependencies of the spectral probe reflection changes and their temporal evolution are analyzed. The prominent features of these experiments are well accounted for by the microscopic many-body theory.}},
  author       = {{Meier, Torsten and Sieh, C. and Koch, S.W. and Lee, Y.-S and Norris, T.B. and Jahnke, F. and Khitrova, G. and Gibbs , H.M.}},
  booktitle    = {{Optical Microcavities}},
  editor       = {{Vahala, K.}},
  pages        = {{239--317}},
  publisher    = {{World Scientific, Chap. 6}},
  title        = {{{Nonlinear optical properties of semiconductor quantum wells inside microcavities}}},
  doi          = {{10.1142/9789812565730_0006}},
  year         = {{2004}},
}