Banionis, Juozas. “Bronislovas Ketarauskas (1905–1978) As the Exile Author of a Textbook of Higher Mathematics”. Lietuvos matematikos rinkinys 48, no. proc. LMS (December 21, 2008): 165–168. Accessed January 18, 2026. https://www.zurnalai.vu.lt/LMR/article/view/18085.