NETESOVA, A. M. On the invariance of a boundary-value problem for a nonlinear evolution equation. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 50, n. 9, p. 1281–1283, 1998. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4846. Acesso em: 5 dec. 2025.