AFANASEVA, N. V.; TEDEEV, A. F. Theorems on the existence and nonexistence of solutions of the Cauchy problem for degenerate parabolic equations with nonlocal source. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 57, n. 11, p. 1443–1464, 2005. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3700. Acesso em: 27 apr. 2025.