HELAĆ, A. SOLVING THE PELL EQUATION BY THE LAGRANGE’S THEOREM METHOD. NIR, [S. l.], v. 1, n. 5, p. 159, 2014. DOI: 10.59417/nir.2014.5.159. Disponível em: http://nir-casopis.org/index.php/nir/article/view/246. Acesso em: 10 mar. 2025.