BANIONIS, Juozas. Petras Vileišis (1851–1926) as the Pioneer in creating Lithuanian “Arithmetic”. Lietuvos matematikos rinkinys, [S. l.], v. 50, n. proc. LMS, p. 145–148, 2009. DOI: 10.15388/LMR.2009.26. Disponível em: https://www.journals.vu.lt/LMR/article/view/17918.. Acesso em: 30 apr. 2024.