DENEVA, S. Nonholonomic systems with nonlinear connections. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 83, n. 2, p. 149–162, 1992. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/517. Acesso em: 22 nov. 2024.