Columbia subject headings:
Kolas, I︠A︡kub, 1882-1956--Influence--Congresses.
Kupala, I︠A︡nka, 1882-1942--Influence--Congresses.
Turgenev, Ivan Sergeevich, 1818-1883--Criticism and interpretation--Congresses.
Harvard subject headings:
Princeton subject headings:
Kolas, I︠A︡kub, 1882-1956--Criticism and interpretation--Congresses.
Kupala, I︠A︡nka, 1882-1942--Criticism and interpretation--Congresses.
Turgenev, Ivan Sergeevich, 1818-1883--Criticism and interpretation--Congresses.