PUKALSKYI, I. D. One-Sided Nonlocal Boundary-Value Problem for Singular Parabolic Equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 11, p. 1521–1532, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4372. Acesso em: 6 dec. 2025.