Черкаська, Д. “The Activity of Lazarus Slavin As Represented by the Works of Scientists of Ukrainian Diaspora in 1950’s and 1960’s.”. The Journal of V. N. Karazin Kharkiv National University. Series: History, no. 51, Dec. 2017, pp. 147-53, https://periodicals.karazin.ua/history/article/view/9889.