Enumeration of Varlet and Comer Hypergroups. - Hossien Aghabozorgi; Morteza Jafarpour; Bijan Davvaz (Electron. J. Comb., 2011)

A class of hyperrings connected to preordered generalized Γ-rings. - Morteza Jafarpour; Hossien Aghabozorgi; Bijan Davvaz (Eur. J. Comb., 2015)

On Sperner (semi)hypergroups. - Morteza Jafarpour; Hossien Aghabozorgi; Violeta Leoreanu Fotea (Eur. J. Comb., 2015)

Soft intersection hyperstructures: Application in Krasner hyperrings. - Tahereh Zare; Morteza Jafarpour; Filiz Çitak; Hossien Aghabozorgi (J. Intell. Fuzzy Syst., 2019)