@article{02062295, title = {A unified characterization of }, journal = {Georgian Mathematical Journal}, volume = {10}, year = {2003}, pages = {289-310}, zbl = {1040.60058}, language = {en}, url = {http://dml.mathdoc.fr/item/02062295} }
Mania, M.; Tevzadze, R. A unified characterization of . Georgian Mathematical Journal, Tome 10 (2003) pp. 289-310. http://gdmltest.u-ga.fr/item/02062295/