@incollection{LinssenMarks2009,
  author    = {Linssen, R. and Marks, E.},
  title     = {School shootings - Considerations on prevention subject to relative ignorance of the phenomenon},
  series = {Coester, M. \& Marks, E. (Hrsg.), International Perspectives of Crime Prevention 2. Contributions from the 2nd Annual International Forum 2008},
  booktitle = {Coester, M. \& Marks, E. (Hrsg.), International Perspectives of Crime Prevention 2. Contributions from the 2nd Annual International Forum 2008},
  edition   = {1.Aufl},
  publisher = {Forum Verlag Godesberg},
  address   = {M{\"o}nchengladbach},
  isbn      = {978-3-936999-},
  pages     = {89 -- 98},
  year      = {2009},
  language  = {en}
}
@article{Koob2009,
  author    = {Koob, Dirk},
  title     = {Teachers` Authenticity in Adult and Continuing Education. An existentialist approach to professionality},
  series = {Journal of Educational Sciences},
  volume    = {11},
  journal   = {Journal of Educational Sciences},
  number    = {2},
  year      = {2009},
  language  = {en}
}
@article{RohmannNiedenthalBrauer2009,
  author    = {Rohmann, A. and Niedenthal, P. M. and Brauer, M.},
  title     = {The attribution of primary and secondary emotions to the in-group and to the out-group. The case of equal status countries},
  series = {The Journal of Social Psychology},
  volume    = {149},
  journal   = {The Journal of Social Psychology},
  pages     = {709 -- 729},
  year      = {2009},
  language  = {en}
}
@article{Hoffmann2009,
  author    = {Hoffmann, Bernward},
  title     = {The Use of Media in Social Work: Aesthetics and Communication - Creative Arts Education - Media Education},
  series = {Polish Journal of Social Science},
  volume    = {Vol. iV},
  journal   = {Polish Journal of Social Science},
  number    = {No. 1},
  pages     = {107 -- 118},
  year      = {2009},
  language  = {en}
}
@article{RowoldRohmann2009,
  author    = {Rowold, J. and Rohmann, A.},
  title     = {Transformational and transactional leadership styles, followers positive and negative emotions, and performance in German non-profit orchestras},
  series = {Nonprofit Management and Leadership},
  volume    = {20},
  journal   = {Nonprofit Management and Leadership},
  pages     = {41 -- 59},
  year      = {2009},
  language  = {en}
}