Cycon, Hans L., Thomas C. Schmidt, Gabriel Hege, Matthias Wählisch, and Mark Palkow. 2009. “Let’s Meet at the Mobile - Learning Dialogs With a Video Conferencing Software for Mobile Devices”. International Journal of Interactive Mobile Technologies (iJIM) 3 (3):pp. 21-25. https://doi.org/10.3991/ijim.v3i3.773.