Fedotova S. Geologist of Luck: The Real Life of Professor Preobrazhensky. In Russian./Fedotova S. Geolog udachi: Nastoyashchaya zhizn professora Preobrazhenskogo. Perm Aster Plus 2021. 336 p. Please contact us for details on condition of available copies of the book. SKUalbf54cc57ec982d198.