Author Пясковский А. В. Питерский А.Д. Description Pyaskovsky, A.V. Lena events of 1912 / A.V. Piaskovsky; Ed. HELL. Petersburg. - Moscow: Moscow. Worker, 1939. -78, [2] c .. - List of used literature: p. 80. . I. Pitersky, A.D .. Source of the electronic copy: PB Publisher Моск. рабочий