Utrecht University, P.O. Box 80021, Utrecht, Utr 3508 TA Netherlands
Int Exploration and Production BV Int Exploration and Production BV Shell Int Production & Exploration, Volmerlaan 8, Rijswijk, ZH 2255 BG Netherlands
Kazan State University, Universitatska 3, Kazan, KA 7856 fg Russian Federation
Kazan State University, Universitatska 3, Kazan, KA 7856 fg Russian Federation