T. K. Tetiana Kuznets and I. O. Ihor Opatskyi, “Collections of Petro Kurinnyi in archives of Ukrainian Free University and Ukrainian Free Academy of Sciences: scientific potential of sources”, Rukopisna ta knižkova spadŝina Ukraïni, vol. 28, pp. 159–172, May 2022, doi: 10.15407/wazghn92.