GIS 2011 - Workshop on Indoor Spatial Awareness:
Chicago, IL, USA
Lars Kulik, Ralf Hartmut Güting, Hua Lu (Eds.):
Indoor Spatial Awareness - ISA 2011, 3rd International Workshop, Chicago, IL, USA, November 1, 2011. Proceedings.
ACM 2011, ISBN 978-1-4503-1035-2