@misc{BanseBartikova, author = {Banse, Gerhard and Bartikov{\´a}, Monika}, title = {e-learning? - e-learning}, publisher = {Berlin : travo Verl.}, isbn = {3-89626-630-6}, language = {de} } @incollection{BanseBartikova, author = {Banse, Gerhard and Bartikov{\´a}, Monika}, title = {Einf{\"u}hrung}, language = {de} }