SOFSEM 2001 Computers, Computer Science, Conferences, 2001 - SOFSEM 2001. 28th Annual Conference on Current Trends in Theory and Practice of Informatics. http://www.sofsem.sk/
Ubicomp 2009 Computers, Computer Science, Conferences, 2001 - UbiComp'2001. International Symposium on Ubiquitous Computing - formerly Handheld and Ubiquitous Computing. https://ubicomp.org/