[1]
E. A. . Kalita, “Properties of solutions of half-linear elliptical systems of nondivirgent kind”, Ukr. Mat. Zhurn., vol. 44, no. 2, pp. 184–191, Feb. 1992, Accessed: Dec. 06, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/7831