SLEPTSOVA, I. P.; SHISHKOV, A. E. Phragmen-Lindelof Principle for Some Quasilinear Evolution Equations of the Second Order. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 57, n. 2, p. 239–249, 2005. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3591. Acesso em: 21 dec. 2025.