@article{04193914, title = {The Dittert's function on a set of nonnegative matrices.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {13}, year = {1990}, pages = {709-716}, doi = {10.1155/S0161171290000953}, zbl = {0724.15016}, language = {en}, url = {http://dml.mathdoc.fr/item/04193914} }
Hwang, Suk Geun; Sohn, Mun-Go; Kim, Si-Ju. The Dittert's function on a set of nonnegative matrices.. International Journal of Mathematics and Mathematical Sciences, Tome 13 (1990) pp. 709-716. doi : 10.1155/S0161171290000953. http://gdmltest.u-ga.fr/item/04193914/