MUKHERJEE, M. N.; RAYCHAUDHURI, S. A NEW TYPE OF CLUSTER SETS AND ITS APPLICATIONS. Tamkang Journal of Mathematics, [S. l.], v. 26, n. 4, p. 327–336, 1995. DOI: 10.5556/j.tkjm.26.1995.4413. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4413. Acesso em: 26 apr. 2024.