Perm

YugovMaximV.Perm State Humanitarian Pedagogical University, 24 Sibirskaya St., Perm 614990, Russiayugov_mv@pspu.ru

GanshchukSvetlanaV.Perm State Humanitarian Pedagogical University, 24 Sibirskaya St., Perm 614990, Russiaganshchuk@pspu.ru

LitvinovNikolaiA.Perm State Humanitarian Pedagogical University, 24 Sibirskaya St., Perm 614990, Russialitvinov@pspu.ru

ChetanovNikolai A.A.Perm State Humanitarian Pedagogical University, 24 Sibirskaya St., Perm 614990, Russiachetanov@yandex.ru