Askar Isabekov(important), Sergey Vazhov(important), Sergey Vazhov(interesting), Sergey L. Volkov(interesting), Lyubov Dokuchaeva(interesting), Vladimir Maer(interesting), Nadezhda Bogomyakova(important), Nadezhda Bogomyakova(interesting), Olga Nemezhikova(important)