ICT in Education, Research, and Industrial Applications : 8th International Conference, ICTERI 2012, Kherson, Ukraine, June 6-10, 2012, Revised Selected Papers - Vadim Ermolayev, Heinrich C. Mayr, Mykola Nikitchenko, Aleksander Spivakovsky, Grygoriy Zholtkevych ((Communications in Computer and Information Science))