Columbia subject headings:
Gogolʹ, Nikolaĭ Vasilʹevich, 1809-1852--Criticism and interpretation.
Turgenev, Ivan Sergeevich, 1818-1883--Criticism and interpretation.
Harvard subject headings:
Gogolʹ, Nikolaĭ Vasilʹevich, 1809-1852--Dramatic works.
Turgenev, Ivan Sergeevich, 1818-1883--Dramatic works.
Princeton subject headings: