Esenin i narodnai︠a︡ poėzii︠a︡ /
Korzhan, Viktor Vladimirovich.
Leningrad :  Akademia Nauk SSSR, Institut Russkoĭ Literatury (Pushkinskiĭ Dom), 
1969.
Esenin, Sergeĭ Aleksandrovich, 1895-1925.