Zissermann, C. N. “Leo Sissermann – a Lifetime of Service to Patients and a Facet in the History of Medicine in the Caucasus”. The Caucasus Journal of Medical and Psychological Sciences, vol. 2, no. 3-4, Feb. 2025, pp. 81-89, doi:10.61699/cjmps-v2-i3-4-p81-89.