10th INTERNATIONAL SKOROBOHATKO MATHEMATICAL CONFERENCE
August 25–28, 2015, Drohobych, Ukraine
INTERNATIONAL V.YA. SKOROBOHATKO MATHEMATICAL CONFERENCE
September 19–23, 2011, Drohobych, Ukraine
(40 anniversary of Western Scientific Center of NAS and MESYS of Ukraine)
INTERNATIONAL V.YA. SKOROBOHATKO MATHEMATICAL CONFERENCE
September 24–28, 2007, Drohobych, Ukraine