1.
Stepanets OI, Wang K, Zhang X. Approximation of locally integrable functions on the real line. Ukr. Mat. Zhurn. [Internet]. 1999 Nov. 25 [cited 2025 Dec. 5];51(11):1549–1561. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4756