@article{AMBP_1996__3_2_155_0,
     author = {Massouros, G.G. and Massouros, Ch.G. and Mittas, I.D.},
     title = {Fortified join hypergroups},
     journal = {Annales math\'ematiques Blaise Pascal},
     pages = {155--169},
     publisher = {Laboratoires de Math\'ematiques Pures et Appliqu\'ees de l'Universit\'e Blaise Pascal},
     volume = {3},
     number = {2},
     year = {1996},
     mrnumber = {1435321},
     zbl = {0870.20054},
     language = {en},
     url = {http://www.numdam.org/item/AMBP_1996__3_2_155_0/}
}