JUN, Y.; LIN, S.; GANGSONG, L. Extremum properties of the new ellipsoid. Tamkang Journal of Mathematics, [S. l.], v. 38, n. 2, p. 159–165, 2007. DOI: 10.5556/j.tkjm.38.2007.86. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/86. Acesso em: 25 apr. 2024.