Lidiia Andriivna Poperechna. Scientific readings in the Institute of Book Studies of VNLU in honor of bibliographer and bibliologist Stepan Yosypovych Petrov. Rukopisna ta knižkova spadŝina Ukraïni. 2017;21:564-567. Accessed September 23, 2026. https://ojs.nbuv.gov.ua/index.php/ojs/article/view/928