Bely VI, Strelkovskaya IV. Approximation of functions by analytical complex splines in the regions with quasi-conformal boundary . Ukr. Mat. Zhurn. [Internet]. 1988 Aug. 29 [cited 2025 Dec. 6];40(5):563-8. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/8803