00489nam a2200157Ia 4500008004100000020001400041082001500055100002200070245005900092250000700151260005600158300002700214500001900241600002100260650005000281240925s9999    xx            000 0 und d  a201631717  a005.43 KAL  aKalawsky  ,Roy S. 4aThe Science of Virtual Reality and Virtual Enviroments  aNA  aWokingham:bAddison-Wily Publishing Companyc,1993.  axx,405p.bNAfOriginal  aIncludes Index  aComputer Science  aComputer science, information & general works