@article{00561651, title = {A criterion for }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {17}, year = {1994}, pages = {205-207}, doi = {10.1155/S0161171294000311}, zbl = {0797.30014}, language = {en}, url = {http://dml.mathdoc.fr/item/00561651} }
Owa, Shigeyoshi; Nunokawa, Mamoru; Fukui, Seiichi. A criterion for . International Journal of Mathematics and Mathematical Sciences, Tome 17 (1994) pp. 205-207. doi : 10.1155/S0161171294000311. http://gdmltest.u-ga.fr/item/00561651/