[1]
N. A. Perestyuk and A. M. Ronto, “On a method for construction of successive approximations for investigation of multipoint boundary-value problems”, Ukr. Mat. Zhurn., vol. 47, no. 9, pp. 1243–1253, Sep. 1995, Accessed: Apr. 13, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/5524