Freksa, C..Spatial cognition VI : Learning, reasoning, and talking about space : international conference Spatial Cognition 2008, Freiburg, Germany, September 15-19, 2008 : proceedgins /.Springer,,c2008..
Spatial cognition VI : Learning, reasoning, and talking about space : international conference Spatial Cognition 2008, Freiburg, Germany, September 15-19, 2008 : proceedgins /