Title: Chetyre tovarishcha; dnevnik.
Authors: Krenkelʹ, Ėrnst Teodorovich, 1903-
Publisher: Gosudarstvennoe izdatelʹstvo "Khudozhestvennai︠a︡ literatura",
Year: 1940
Subjects: Papanin, Ivan Dmitrievich,; Shirshov, P. P.; Fedorov, E. K.; Ėkspedit︠s︡ii︠a︡ "Severnyĭ poli︠u︡s" (1937); Arctic regions.