Institution: | (1) Joint Institute for Nuclear Research, Joliot-Curie 6, Dubna, Moscow oblast, 141980, Russia;(2) Sofia University St. Kliment Ohridski, Tsar Osvoboditel Blvd 15, Sofia, 1504, Bulgaria;(3) Ordzhonikidze Moscow State Geological Prospecting University, ul. Miklukho-Maklaya 23, Moscow, 118617, Russia |