@inbook{9762,
  author       = {{Stemmer, Boris}},
  booktitle    = {{GIS in der Stadt- und Landschaftsplanung}},
  editor       = {{Haustein, Nicole and Demel, Sabine}},
  isbn         = {{978-3-89117-162-2}},
  publisher    = {{Infosystem Planung, Univ. Kassel }},
  title        = {{{GIS-basierte 3D-Landschaftsvisualisierung mit VNS 2.5}}},
  volume       = {{164}},
  year         = {{2007}},
}

@misc{9770,
  author       = {{Mülder, Jochen and Stemmer, Boris}},
  booktitle    = {{CORP 2006: Sustainable Solutions for the Information Society : Proceedings of 11th international conference on Urban Planning and Spatial Development in the Information Society}},
  editor       = {{Schrenk, Manfred}},
  isbn         = {{978-3-9502139-0-4}},
  location     = {{Wien}},
  pages        = {{435–442}},
  publisher    = {{CORP - Competence Center of Urban and Regional Planning }},
  title        = {{{Unterstützung nachhaltiger Planung durch 3- und 4D Visualisierung mit World Construction Set und Visual Nature Studio}}},
  year         = {{2006}},
}