ZHUK, Anastasia I.; ZASHCHUK, Helena N. Systems of equations in differentials with generalised derivatives of continuous functions. Journal of the Belarusian State University. Mathematics and Informatics, [S. l.], n. 3, p. 22–30, 2024. Disponível em: https://journals.bsu.by/index.php/mathematics/article/view/6233. Acesso em: 7 oct. 2026.