NARANG, T. D.; SINGH, S. P. BEST COAPPROXIMATION IN LOCALLY CONVEX SPACES. Tamkang Journal of Mathematics, [S. l.], v. 28, n. 1, p. 1–5, 1997. DOI: 10.5556/j.tkjm.28.1997.4244. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4244. Acesso em: 19 apr. 2024.