STANKUS, Eugenijus. Number theory in secondary schools’ mathematics. Lietuvos matematikos rinkinys, [S. l.], v. 47, n. spec., p. 283–285, 2021. DOI: 10.15388/LMR.2007.24215. Disponível em: https://www.journals.vu.lt/LMR/article/view/24215.. Acesso em: 22 nov. 2024.