Diachenko, Liudmyla. “Pedagogical Publications in the German Language of the Second Half of the 19th Century – the Early of the 20th Century in the Fund of V. O. Sukhomlynsky State Scientific and Pedagogical Library of Ukraine: Source Studies Aspect”. Research and Educational Studies 6, no. 6 (August 15, 2024): 56-74. Accessed December 14, 2024. https://dnpb.gov.ua/ojs/npstudies/article/view/37.