CARDINALI, Tiziana. Some characterizations of functions generating K-Schur concave sums and of K-concave set-valued functions. Annales Mathematicae Silesianae, [S. l.], v. 9, p. 17–28, 1995. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14201. Acesso em: 8 may. 2025.