Avi Parush Shir Ahuvia Ido Erev Degradation in Spatial Knowledge Acquisition When Using Automatic Navigation Systems. 238-254 2007 conf/cosit/2007 COSIT http://dx.doi.org/10.1007/978-3-540-74788-8_15 db/conf/cosit/cosit2007.html#ParushAE07