PT Unknown AU Schacht, S Botzenhardt, A Mädche, A TI AskEris : A Many-to-One Communication Platform for Higher Education SE 45th Hawaii International Conference on System Sciences : (HICSS) ; Maui, USA, 4-7 January 2012. Ed.: R. Sprague PY 2012 BP 21 EP 30 DI 10.1109/HICSS.2012.122 LA english ER