K. Figl, and C. Bauer. IADIS International Conference e-Learning 2008 (eL 2008) (part of MCCSIS 2008), volume V I, 2 of eL 2008, page 207-214. IADIS press, (July 2008)Best Research Paper Award.
R. Kawase, P. Siehndel, B. Nunes, and M. Fisichella. ICALT 2013: 13th IEEE International Conference on Advanced Learning Technologies (ICALT), Beijing, China, (July 2013)