DESIMIROV, G. On the dynamics of quark-quark interaction. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 88, p. 269–278, 1996. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/386. Acesso em: 9 apr. 2025.