@inproceedings{TUC-CSCW/PLAA07, author = "N. Pinkwart and C. Lynch and K. D. Ashley and V. Aleven", title = "Student's Usage of Multiple Linked Argument Representations in LARGO", year = 2007, booktitle = "Tagungsband der 7. Konferenz für interaktive und kooperative Medien (Mensch \& Computer)", publisher = "Oldenbourg Verlag" }