1.
Motornaya OV, Motornyi VP, Nitiema PK. One-sided approximation of a step by algebraic polynomials in the mean. Ukr. Mat. Zhurn. [Internet]. 2010Mar.25 [cited 2024Apr.26];62(3):409–422. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2876