Lazarev, Yakov. “Cultural Mechanisms of Integrating the Ukrainian Cossaсk Elite into the Imperial Nobility”. Quaestio Rossica 8, no. 1 (April 1, 2020): 270–282. Accessed December 9, 2022. https://qr.urfu.ru/ojs/index.php/qr/article/view/qr.461.