A. V. Bondar and E. A. Lukyanova, “On pseudoanalyticity of continuous functions with constant $σ$-extension”, Ukr. Mat. Zhurn., vol. 45, no. 4, pp. 459–465, Apr. 1993, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/5832