SOKOLOV, N. P. Application of functions from multidimensional matrices to solution of systems of linear partial differential equations of higher orders . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 23, n. 4, p. 493–506, 1971. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8583. Acesso em: 6 dec. 2025.