@article{ls_leimeister, author = {Wegener, R. and Leimeister, J. M.}, interhash = {66bccfd06244422ab0072cbef4d1e3ab}, intrahash = {1ae66b27b82ee8771b7ff6b8f9a3b8ad}, journal = {International Journal of Technology Enhanced Learning (IJTEL)}, note = {JML_390}, number = {5/6}, pages = {383 - 397}, title = {Virtual Learning Communities: Success Factors and Challenges}, volume = 4, year = 2012 }