Lal S, Sharma V. On the estimation of functions belonging to Lipschitz class by block pulse functions and hybrid Legendre polynomials. Carpathian Math. Publ. [Internet]. 2020 Jun. 12 [cited 2024 Apr. 26];12(1):111-28. Available from: https://journals.pnu.edu.ua/index.php/cmp/article/view/3891