A conceptual model for analyzing contribution patterns in the context of VGI
Rehrl, K., Gröchenig, S., Hochmair, H. Leitinger, S., Steinmann, R. and Wagner, A. (2012): A conceptual model for analyzing contribution patterns in the context of VGI In: LBS 2012 – 9th Symposium on Location Based Services. Berlin: Springer.
