@inproceedings{HubwieserP..2003,

author = {{Hubwieser P.}},

title = {Object Models of IT-Systems Supporting Cognitive Structures in Novice Courses of Informatics.},

pages = {129-140},

volume = {116},

publisher = {Kluwer Academic Publishers},

isbn = {1402073631},

series = {IFIP / International Federation for Information Processing},

editor = {Weert, Tom J. van and Munro, Robert K},

booktitle = {Informatics and the digital society},

year = {2003},

address = {Boston, Mass.}

}