Solvability of degenerate semilinear parabolic functional differential equations. Neliniini Kolyvannya, [S. l.], v. 6, n. 3, p. 319–333, 2003. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/270. Acesso em: 22 jan. 2026.