LATIF, A.; BANO, A.; KHAN, A. R. A result on best approximation in locally convex spaces. Tamkang Journal of Mathematics, [S. l.], v. 36, n. 3, p. 237–242, 2005. DOI: 10.5556/j.tkjm.36.2005.116. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/116. Acesso em: 3 dec. 2024.