S. G. Zhuravskii, “Personality and private life of S.P. Botkin on the materials of ‘Letters of S.P. Botkin from Bulgaria of 1877’)”, HOM, vol. 4, no. 4, Aug. 2024, Accessed: Sep. 13, 2025. [Online]. Available: http://www.historymedjournal.com/index.php/medicine/article/view/182