BONDARENKO, V. G. Perturbed Parabolic Equation on a Riemannian Manifold. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 55, n. 7, p. 977–982, 2003. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3972. Acesso em: 6 dec. 2025.