G. P. Kalantaevska; N. N. Prokopenko; S. V. Voropai. G. P. Kalantaevska, N. N. Prokopenko, S. V. Voropai. Literary Environment and Literary Situation in Ukraine in 60 – 70’s of Xx Century in the Context of the Correspondence of B. Antonenko-Davydovych. PT 2020, 10, 94-104.