BALČYTIS, Bronius. Modest algebraization a perspective direction of initial mathematical teaching . Lietuvos matematikos rinkinys, [S. l.], v. 37, n. I, p. 117–120 , 1997. DOI: 10.15388/LMD.1997.38186. Disponível em: https://www.zurnalai.vu.lt/LMR/article/view/38186. Acesso em: 7 nov. 2025.