@article{05704306, title = {Rare }, journal = {Bulletin of the Malaysian Mathematical Sciences Society. Second Series}, volume = {28}, year = {2005}, pages = {157-161}, zbl = {1185.54016}, language = {en}, url = {http://dml.mathdoc.fr/item/05704306} }
Jafari, Saeid. Rare . Bulletin of the Malaysian Mathematical Sciences Society. Second Series, Tome 28 (2005) pp. 157-161. http://gdmltest.u-ga.fr/item/05704306/