@article{NSJOM_2014_44_2a_10,
     author = {A. Radfar, and A. Rezaei, and A. Boru and and Saeid},
     title = {Hyper $BE$--algebras},
     journal = {Novi Sad Journal of Mathematics},
     pages = {137-147},
     publisher = {mathdoc},
     volume = {44},
     number = {2},
     year = {2014},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2014_44_2a_10/}
}