BUDREIKA, B.; VILKAS, E. The derivative of the value of parametric antagonistic game. Lithuanian Mathematical Journal, [S. l.], v. 7, n. 1, p. 23–27, 1967. DOI: 10.15388/LMJ.1967.19929. Disponível em: https://journals.vu.lt./LMJ/article/view/19929. Acesso em: 27 apr. 2025.