@phdthesis{Trappmann2007,
  author    = {Trappmann, Henryk},
  title     = {Arborescent numbers : higher arithmetic operations and division trees},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-15247},
  school      = {Universit{\"a}t Potsdam},
  year      = {2007},
  abstract  = {The overall program "arborescent numbers" is to similarly perform the constructions from the natural numbers (N) to the positive fractional numbers (Q+) to positive real numbers (R+) beginning with (specific) binary trees instead of natural numbers. N can be regarded as the associative binary trees. The binary trees B and the left-commutative binary trees P allow the hassle-free definition of arbitrary high arithmetic operations (hyper ... hyperpowers). To construct the division trees the algebraic structure "coppice" is introduced which is a group with an addition over which the multiplication is right-distributive. Q+ is the initial associative coppice. The present work accomplishes one step in the program "arborescent numbers". That is the construction of the arborescent equivalent(s) of the positive fractional numbers. These equivalents are the "division binary trees" and the "fractional trees". A representation with decidable word problem for each of them is given. The set of functions f:R1->R1 generated from identity by taking powers is isomorphic to P and can be embedded into a coppice by taking inverses.},
  language  = {en}
}
@article{BrainGebserPuehreretal.2007,
  author    = {Brain, Martin and Gebser, Martin and P{\"u}hrer, J{\"o}rg and Schaub, Torsten H. and Tompits, Hans and Woltran, Stefan},
  title     = {"That is illogical, Captain!" : the debugging support tool spock for answer-set programs ; system description},
  year      = {2007},
  language  = {en}
}
@article{BrainGebserPuehreretal.2007,
  author    = {Brain, Martin and Gebser, Martin and P{\"u}hrer, J{\"o}rg and Schaub, Torsten H. and Tompits, Hans and Woltran, Stefan},
  title     = {Debugging ASP programs by means of ASP},
  isbn      = {978-3-540- 72199-4},
  year      = {2007},
  language  = {en}
}
@article{GebserSchaubTompitsetal.2007,
  author    = {Gebser, Martin and Schaub, Torsten H. and Tompits, Hans and Woltran, Stefan},
  title     = {Alternative characterizations for program equivalence under aswer-set semantics : a preliminary report},
  year      = {2007},
  language  = {en}
}
@inproceedings{ReimerAharonianHintonetal.2007,
  author    = {Reimer, O. and Aharonian, Felix A. and Hinton, J. and Hofmann, W. and Hoppe, S. and Raue, M. and Reimer, A.},
  title     = {VHE gamma-rays from Westerlund 2 and implications for the inferred energetics},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-18172},
  year      = {2007},
  abstract  = {The H.E.S.S. collaboration recently reported the discovery of VHE γ-ray emission coincident with the young stellar cluster Westerlund 2. This system is known to host a population of hot, massive stars, and, most particularly, the WR binary WR 20a. Particle acceleration to TeV energies in Westerlund 2 can be accomplished in several alternative scenarios, therefore we only discuss energetic constraints based on the total available kinetic energy in the system, the actual mass loss rates of respective cluster members, and implied gamma-ray production from processes such as inverse Compton scattering or neutral pion decay. From the inferred gammaray luminosity of the order of 1035erg/s, implications for the efficiency of converting available kinetic energy into non-thermal radiation associated with stellar winds in the Westerlund 2 cluster are discussed under consideration of either the presence or absence of wind clumping.},
  language  = {en}
}
@article{Hoffmann2007,
  author    = {Hoffmann, Michael},
  title     = {Stolperstein Funktionalstil : Anmerkungen zum Kapitel "Text" in der Neuauflage der Dudengrammatik},
  year      = {2007},
  language  = {de}
}
@article{SchefflerKetelhutMohasseb2007,
  author    = {Scheffler, Christiane and Ketelhut, Kerstin and Mohasseb, Iman},
  title     = {Does physical education modify the body composition? - Results of a longitudinal study of pre-school children},
  year      = {2007},
  abstract  = {The aim of the study is the analysis of body composition, motor development and cardiovascular parameters of preschool-children. In 2001/2002 a longitudinal study started in 17 nursery schools in Berlin. A total of 160 children out of the 264 children participated in a regular exercise programme. After 24 months of training significant differences of body composition, motor skills and cardiovascular parameters between 5 complete year old children of the intervention and the control group were observed. The results show that such an exercise programme is successful as a preventive measure to decrease the risk of obesity.},
  language  = {en}
}
@phdthesis{Surrey2007,
  author    = {Surrey, Heike},
  title     = {Professionelles Lernmanagement : Gestaltung kompetenzorientierter Lernprozesse zur Erzielung von Wettbewerbsvorteilen},
  series = {Gabler Edition Wissenschaft \$ Strategisches Kompetenz-Management},
  journal   = {Gabler Edition Wissenschaft \$ Strategisches Kompetenz-Management},
  publisher = {DUV Deutscher Universit{\"a}ts-Verlag},
  address   = {Wiesbaden},
  isbn      = {978-3-8350-0764-2},
  pages     = {XVIII, 322 S. : graph. Darst.},
  year      = {2007},
  language  = {de}
}
@book{OPUS4-10878,
  title     = {Handbuch der Sonderp{\"a}dagogik},
  editor    = {Borchert, Johann and Goetze, Herbert},
  publisher = {Hogrefe},
  address   = {G{\"o}ttingen},
  year      = {2007},
  language  = {de}
}
@misc{MinthNguyen2007,
  author    = {Minth Nguyen, Duc},
  title     = {Die Verteilung der staatlichen Einnahmen auf die Kommunen in Deutschland und Vietnam},
  series = {Potsdamer Rechtswissenschaftliche Reihe},
  volume    = {29},
  journal   = {Potsdamer Rechtswissenschaftliche Reihe},
  publisher = {Frank \& Timme},
  address   = {Berlin},
  isbn      = {978-3-86596-139-6},
  pages     = {XIX, 407 S.},
  year      = {2007},
  language  = {de}
}