Binary relations and reduced hypergroups. - Irina Cristea; Mirela Stefanescu (Discret. Math., 2008)

On the fuzzy grade of hypergroups. - Mirela Stefanescu; Irina Cristea (Fuzzy Sets Syst., 2008)

Hyperstructures and fuzzy sets endowed with two membership functions. - Irina Cristea (Fuzzy Sets Syst., 2009)

Enumeration of Rosenberg hypergroups. - Irina Cristea; Morteza Jafarpour; Seyed S. Mousavi; Ali Soleymani (Comput. Math. Appl., 2010)

About a decomposition of the group Zpq, where p and q are distinct odd primes. - Irina Cristea; Mohammad Reza Darafsheh (Eur. J. Comb., 2010)

Hypergroups and n-ary relations. - Irina Cristea; Mirela Stefanescu (Eur. J. Comb., 2010)

Atanassov's intuitionistic fuzzy grade of hypergroups. - Irina Cristea; Bijan Davvaz (Inf. Sci., 2010)

A decomposition of the cyclic groups of order p and p2, where p is a prime number. - Irina Cristea; Mohammad Reza Darafsheh (J. Intell. Fuzzy Syst., 2010)

About the fundamental relations defined on the hypergroupoids associated with binary relations. - Irina Cristea; Mirela Stefanescu; Carmen Angheluta (Eur. J. Comb., 2011)

On Atanassov's Intuitionistic Fuzzy Grade of Complete Hypergroups. - Carmen Angheluta; Irina Cristea (J. Multiple Valued Log. Soft Comput., 2012)

Operations on Fuzzy Relations: A Tool to Construct New Hyperrings. - Irina Cristea; Sanja Jancic-Rasovic (J. Multiple Valued Log. Soft Comput., 2013)

Atanassov's Intuitionistic Fuzzy Grade of I.P.S. Hypergroups of Order 7. - Bijan Davvaz; Elhan Hassani Sadrabadi; Irina Cristea (J. Multiple Valued Log. Soft Comput., 2013)

Characterizations of fuzzy soft Γ-hemirings. - Jianming Zhan 001; Irina Cristea (J. Intell. Fuzzy Syst., 2014)

On dihedral hypergroups. - Morteza Jafarpour; Irina Cristea; F. Alizadeh (Eur. J. Comb., 2015)

Special intuitionistic fuzzy subhypergroups of complete hypergroups. - Irina Cristea; Bijan Davvaz; Elhan Hassani Sadrabadi (J. Intell. Fuzzy Syst., 2015)

Fuzzy Algebraic Hyperstructures - An Introduction - Bijan Davvaz; Irina Cristea (Springer, 2015)

A method to compute the number of regular reversible Rosenberg hypergroup. - Morteza Jafarpour; Irina Cristea; Ali Tavakoli (Ars Comb., 2016)

Fuzzy Subhypergroups Degree. - Irina Cristea (J. Multiple Valued Log. Soft Comput., 2016)

A new type of fuzzy subsemihypermodules. - Morteza Norouzi; Irina Cristea (J. Intell. Fuzzy Syst., 2017)

Subpolygroups Related to a Fuzzy Topology. - N. Abbasizadeh; Irina Cristea; Bijan Davvaz; Jianming Zhan 001 (J. Multiple Valued Log. Soft Comput., 2018)

Cyclicity in EL-Hypergroups. - Michal Novák; Stepán Krehlík; Irina Cristea (Symmetry, 2018)

Weak Embeddable Hypernear-Rings. - Jelena Dakic; Sanja Jancic-Rasovic; Irina Cristea (Symmetry, 2019)

Breakable Semihypergroups. - Dariush Heidari; Irina Cristea (Symmetry, 2019)

Hyperhomographies on Krasner Hyperfields. - Vahid Vahedi; Morteza Jafarpour; Irina Cristea (Symmetry, 2019)

A New Type of Fuzzy Quasi-ideals of Ordered Semigroups. - Irina Cristea; Ahsan Mahboob; Noor Mohammad Khan (J. Multiple Valued Log. Soft Comput., 2020)

A fuzzy application of the group Zn to complete hypergroups. - Irina Cristea; Elhan Hassani Sadrabadi; Bijan Davvaz (Soft Comput., 2020)

A Comparison of Complete Parts on m-Idempotent Hyperrings. - Azam Adineh Zadeh; Morteza Norouzi; Irina Cristea (Symmetry, 2020)

About the Normal Projectivity and Injectivity of Krasner Hypermodules. - Hashem Bordbar; Irina Cristea (Axioms, 2021)

Special Issue on Symmetry in Classical and Fuzzy Algebraic Hypercompositional Structures. - Irina Cristea (Symmetry, 2022)

Dependence Relations and Grade Fuzzy Set. - Alessandro Linzi; Irina Cristea (Symmetry, 2023)

From HX-Groups to HX-Polygroups. - Seyed S. Mousavi; Morteza Jafarpour; Irina Cristea (Axioms, 2024)