BURGIS, Bronislovas. Directories of mathematics web sites: principles of composition. Lietuvos matematikos rinkinys, [S. l.], v. 47, n. spec., p. 220–223, 2021. DOI: 10.15388/LMR.2007.24201. Disponível em: https://www.journals.vu.lt/LMR/article/view/24201.. Acesso em: 18 jul. 2024.