Ronto MI, Samoilenko AM, Trofimchuk SI. The theory of the numerical-analytic method: Achievements and new trends of development. VI. Ukr. Mat. Zhurn. [Internet]. 1999Jul.25 [cited 2024May13];51(7):960–971. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4685