BANDURA A. Application of Hayman’s Theorem to Directional Differential Equations With Analytic Solutions in the Unit Ball. Stud. Univ. Babeş-Bolyai Math. [Internet]. 2024 Jun. 18 [cited 2025 Feb. 5];69(2):335-50. Available from: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/7298