Ažubalis, Algirdas. “Juozas Baltūsis – the Eminent Mathematics Teacher in the 20th–60th Years of the 20th Century in Lithuania”. Lietuvos matematikos rinkinys 56, no. B (December 20, 2015): 95–100. Accessed May 4, 2024. https://www.journals.vu.lt/LMR/article/view/17719.