RACHID EL JID. MLS Method: Numerical Error and Solution of a Unilateral Contact Problem Using Penalty and Lagrange Multiplier. International Journal of Mathematics And its Applications, [S. l.], v. 7, n. 1, p. 121–136, 2019. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/274. Acesso em: 3 jul. 2024.