Stikhotvorenii︠a︡ Pushkina 1820-1830-kh godov : istorii︠a︡ sozdanii︠a︡ i ideĭno-khudozhestvennai︠a︡ problematika /
Izmaĭlov, N. V.
Leningrad :  Nauka, 
1974.
Pushkin, Aleksandr Sergeevich, 1799-1837