KURTA , V. V. On the Fragmen–Lindelof theorems for quasilinear elliptic equations of the second order . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 10, p. 1376–1381, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8234. Acesso em: 27 apr. 2025.