@bookRet2009, Author = {Rettberg, Achim and Reis, Ricardo (Editoren)}, Title = {Proceedings of EduTech Workshop 2009}, Year = {2009}, Month = {10}, Editor = {Ricardo Reis, Achim Rettberg}, Booktitle = {Proceedings of 3rd EduTech Workshop}, type = {book} @COMMENTBibtex file generated on