Ermolaev Oleg Petrovich nick Unut Christie KFU / the Institute of physics / NEIL Cosmoecology, senior researcher, PhD

Vedeneeva Evgeniya Anatol'evna Kazan Federal University / Institute of physics / NEIL Cosmoecology, Junior researcher,

Prishchepov, Alexander Vladimirovich Kazan Federal University / Institute of physics / NEIL Cosmoecology, research associate,