VAINIKKO, Gennadi. Cardinal approximation of functions by splines on an interval. Mathematical Modelling and Analysis, [S. l.], v. 14, n. 1, p. 127–138, 2009. DOI: 10.3846/1392-6292.2009.14.127-138. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/6529. Acesso em: 12 jul. 2025.