Russia

SheremetevAlexanderGrigoryevichSaratov State University, 83 Astrakhanskaya St., Saratov 410012, Russiaalexandrsheremetev@yandex.ru

SheninSergeyYuryevichSaratov State University, 83 Astrakhanskaya St., Saratov 410012, Russiashenins@yahoo.com

CholakhyanVachaganA.Saratov State University, 83 Astrakhanskaya St., Saratov 410012, Russiavcholakhyan@yandex.ru

TotfalushinViktorPetrovichSaratov State University, 83 Astrakhanskaya St., Saratov 410012, RussiaTotfalushinVP@info.sgu.ru

SpikinaElenaEdwardSaratov State University, 83 Astrakhanskaya St., Saratov 410012, Russiasmi@mse.istnet.ru

PomogalovaOxanaIgorevnaSaratov State University, 83 Astrakhanskaya St., Saratov 410012, Russiaksy2093@mail.ru

MosolkinaTatyanaValentinovnaSaratov State University, 83 Astrakhanskaya St., Saratov 410012, Russiatmosolkina@mail.ru

MakarovaDarjaYurjevnaKursk State University, 33 Radishcheva St., Kursk 305000, Russiaveter-s-gor@yandex.ru

KolesnikovaSvetlanaYu.Saratov State University, 83 Astrakhanskaya St., Saratov 410012, RussiaApril.88@inbox.ru

GalyamichevAlexandrN.Saratov State University, 83 Astrakhanskaya St., Saratov 410012, RussiaGalyamichev57@mail.ru

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