@article{01883686, title = {Fuzzy structures of PI(}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2003}, year = {2003}, pages = {549-556}, doi = {10.1155/S0161171203110277}, zbl = {1011.06502}, language = {en}, url = {http://dml.mathdoc.fr/item/01883686} }
Jun, Young Bae; Shim, Wook Hwan. Fuzzy structures of PI(. International Journal of Mathematics and Mathematical Sciences, Tome 2003 (2003) pp. 549-556. doi : 10.1155/S0161171203110277. http://gdmltest.u-ga.fr/item/01883686/