Information and Communication Technologies in Education, Research, and Industrial Applications 11th International Conference, ICTERI 2015, Lviv, Ukraine, May 14-16, 2015, Revised Selected Papers - Yakovyna, Vitaliy; Mayr, Heinrich C.; Nikitchenko, Mykola; Zholtkevych, Grygoriy; Spivakovsky, Aleksander; Batsakis, Sotiris (Springer International Publishing : Imprint: Springer, 2016)