Title: I︠E︡vhen Chykalenko, Serhiĭ I︠E︡fremov
Subjects: Correspondence, Intellectuals, Intellectual life
Places: Ukraine
People: I︠E︡vhen Chykalenko (1861-1929), Serhiĭ I︠E︡fremov (1876-1939)
Time periods: 20th century