M. Gorʹkiĭ i A. Chekhov. Perepiska, statʹi, vyskazanii︠a︡ / 
Academy of Sciences of the Union of Soviet Socialist Republics (Moscow). - A.M. Gorʹky Institute of World Literature.
Gitovich, N. I.
Sergievskogo, I. V.
Moskva, 
1951.