MAHBOD, M. Physics, Mechanics, Mathematics. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 11, n. 4, p. 5115–5166, 2015. DOI: 10.24297/jam.v11i4.1261. Disponível em: https://rajpub.com/index.php/jam/article/view/11-4-1261. Acesso em: 28 mar. 2024.