VILKAS, Robertas. Do we need mixed numbers?. Lietuvos matematikos rinkinys, [S. l.], v. 64, n. B, p. 114–123, 2023. DOI: 10.15388/LMR.2023.33601. Disponível em: https://www.journals.vu.lt/LMR/article/view/33601.. Acesso em: 20 may. 2024.