AŽUBALIS, Algirdas. Juozas Baltūsis – the eminent mathematics teacher in the 20th–60th years of the 20th century in Lithuania. Lietuvos matematikos rinkinys, [S. l.], v. 56, n. B, p. 95–100, 2015. DOI: 10.15388/LMR.B.2015.18. Disponível em: https://test.zurnalai.vu.lt/LMR/article/view/17719. Acesso em: 27 oct. 2025.