@article{01214044, title = {On Schur-Ostrowski type theorems for group majorizations.}, journal = {Journal of Convex Analysis}, volume = {5}, year = {1998}, pages = {81-105}, zbl = {0914.15014}, language = {en}, url = {http://dml.mathdoc.fr/item/01214044} }
Niezgoda, Marek. On Schur-Ostrowski type theorems for group majorizations.. Journal of Convex Analysis, Tome 5 (1998) pp. 81-105. http://gdmltest.u-ga.fr/item/01214044/