MAZĖTIS, Edmundas; MELNIČENKO, Grigorijus. Proofs without words. Lietuvos matematikos rinkinys, [S. l.], v. 64, n. B, p. 50–58, 2023. DOI: 10.15388/LMR.2023.33596. Disponível em: https://www.journals.vu.lt/LMR/article/view/33596.. Acesso em: 19 may. 2024.