000 00436nmm a2200145Ia 4500
008 230202s9999||||xx |||||||||||||||||und||
020 _a9783540471110
100 _aDouglas H. Norrie, Hans-Werner Six
245 0 _aComputer Assisted Learning
250 _a1990
260 _bSpringer Berlin Heidelberg
_c1990
440 _aLecture Notes in Computer Science
650 _aComputer Science
856 _uhttps://doi.org/10.1007/BFb0020864
999 _c26501
_d26501