Weihs, C., & Gaul, W. (2005). Classification β the Ubiquitous Challenge: Proceedings of the 28th Annual Conference of the Gesellschaft fΓΌr Klassifikation e.V. University of Dortmund, March 9β11, 2004. Springer-Verlag Berlin Β· Heidelberg.
Παραπομπή σε μορφή Chicago (17η εκδ.)Weihs, Claus, και Wolfgang Gaul. Classification β the Ubiquitous Challenge: Proceedings of the 28th Annual Conference of the Gesellschaft FΓΌr Klassifikation E.V. University of Dortmund, March 9β11, 2004. Berlin, Heidelberg: Springer-Verlag Berlin Β· Heidelberg, 2005.
Παραπομπή σε μορφή MLA (8th εκδ.)Weihs, Claus, και Wolfgang Gaul. Classification β the Ubiquitous Challenge: Proceedings of the 28th Annual Conference of the Gesellschaft FΓΌr Klassifikation E.V. University of Dortmund, March 9β11, 2004. Springer-Verlag Berlin Β· Heidelberg, 2005.