@article{BMMS_2012_35_2_a9,
     author = {Hossein Mousa Jafarabadi and Nor Haniza Sarmin and Mohammad Reza Molaei},
     title = {Completely {Simple} and {Regular} {Semi} {Hypergroups}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2012},
     volume = {35},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2012_35_2_a9/}
}