Costa S., Delucchi L., Giacomelli A., Malvicini F., Volunteered Geographic Information Experiences in Italy: an overview of 2008 and 2009 (Proceedings of the 10th GRASS User meeting, Lugano 2010).
Costa S., Delucchi L., Giacomelli A., Malvicini F., Volunteered Geographic Information Experiences in Italy: an overview of 2008 and 2009 (Proceedings of the 10th GRASS User meeting, Lugano 2010).