SKRYPNIK, I. I. On the existence of initial values of solutions of weakly nonlinear parabolic equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 45, n. 11, p. 1567–1570, 1993. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5962. Acesso em: 5 dec. 2025.