Kaltachenka, Alina I. 2023. “EDUCATIONAL TRAVELS OF LEW SAPIEHA AND HIS SONS TO THE UNIVERSITIES OF GERMANY, THE NETHERLANDS AND ITALY IN 1570–1630”. Zhurnal Belorusskogo Gosudarstvennogo Universiteta. Istoriya 5 (3): 5-14. https://doi.org/10.33581/wj01y489.