Columbia subject headings:
Chumakov, I︠U︡. N. (I︠U︡riĭ Nikolaevich)
Russian literature--19th century--History and criticism.
Harvard subject headings:
Chumakov, I︠U︡. N.
Russian literature--19th century--History and criticism
Princeton subject headings:
Pushkin, Aleksandr Sergeevich, 1799-1837--Criticism and interpretation.
Russian literature--History and criticism.