LOS, V. N. A condition for generalized solutions of a parabolic problem for a Petrovskii system to be classical. Methods of Functional Analysis and Topology, [S. l.], v. 26, n. 2, p. 111–118, 2020. DOI: https://doi.org/10.31392/MFAT-npu26_2.2020.03. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/751. Acesso em: 15 dec. 2025.