Papers

C. Pelea, About a category of canonical hypergroups, Ital. J. Pure Appl. Math., 7, 2000, 157-166.
C. Pelea, On the fundamental relation of a multialgebra (preliminary version), Ital. J. Pure Appl. Math., 10, 2001, 141-146.
S. Breaz, C. Pelea, Multialgebras and term functions over the algebra of their nonvoid subsets (preliminary version), Mathematica (Cluj), 43(66), 2, 2001, 143-149.
C. Pelea, Multialgebras and term functions over the algebra of their nonvoid subsets, Proc. of the Algebra Symposium (Cluj-Napoca, Romania, 2001), EFES, Cluj-Napoca, 2002, 165-172.
C. Pelea, On the direct product of multialgebras, Studia Univ. Babes-Bolyai, seria Mathematica, 48, 2, 2003, 93-98.
C. Pelea, Identities and multialgebras (preliminary version), Ital. J. Pure Appl. Math., 15, 2004, 83-92.
C. Pelea, On the direct limit of a direct system of complete multialgebras, Studia Univ. Babes-Bolyai, seria Mathematica, 49, 1, 2004, 63-68.
C. Pelea, Relational structures, multialgebras and inverse limits (uncorrected proof), Ann. Univ. Sci. Budapest. Eotvos Sect. Math., 47, 2004, 47-64.
C. Pelea, I. Purdea, A characterization theorem for complete multialgebras (preliminary version), Mathematica (Cluj), 46(69), 2, 2004, 205-211.
C. Pelea, On the fundamental algebra of a direct product of multialgebras (preliminary version), Ital. J. Pure Appl. Math., 18, 2005, 69-84.
C. Pelea, I. Purdea, Universal algebras, congruences and complete multialgebras, Proc. of the Algebra Symposium (Cluj-Napoca, Romania, 2005), EFES, Cluj-Napoca, 2006, 87-94.
C. Pelea, I. Purdea, Multialgebras, universal algebras and identities, J. Aust. Math. Soc., 81, 2006, 121-139.
C. Pelea, On the direct limit of a direct system of multialgebras, Discrete Math., 306, 22, 2006, 2916-2930.
C. Pelea, A note on the direct limit of a direct system of multialgebras in a subcategory of multialgebras, Carpathian J. Math., 22, 1-2, 2006, 121-128.
C. Pelea, I. Purdea, Direct limits of direct systems of hypergroupoids associated to binary relations (preliminary version), Advances in Mathematics of Uncertainty, Proc. of the Symposium Mathematics of Uncertainty, ECIT 2006, Iasi, 2006, 31-40.
H. Olaru, C. Pelea, I. Purdea, On the completeness of the semihypergroups associated to binary relations, Studia Univ. Babes-Bolyai, seria Mathematica, 52, 2, 2007, 73-85.
C. Pelea, Products of multialgebras and their fundamental algebras, Proc. of ICTAMI 2007, Alba Iulia, Romania, August 29 September 2, 2007 (Acta Univ. Apulensis, 15, 2008), 105-118.
C. Pelea, I. Purdea, Identities in multialgebra theory (preliminary version), Proceedings of AHA 2008, September 3-9, 2008, Brno, Czech Republic, 2009, 251-266.
S. Breaz, C. Pelea, I. Purdea, Products of hypergroupoids associated to binary relations, Carpathian J. Math., 25, 1, 2009, 23-36.
C. Pelea, An approach of hypergroups via multialgebras and identities, Revista de logică, 3, 2011.
C. Pelea, Hyperrings and $\alpha^*$-relations. A general approach, J. Algebra, 383, 2013, 104-128.
C. Pelea, I. Purdea, L. Stanca, Fundamental relations in multialgebras. Applications, European J. Combin., Volume 44, Part B, 2015, 287-297.
C. Pelea, I. Purdea, L. Stanca, Factor multialgebras, universal algebras and fuzzy sets, Carpathian J. Math., 31. 1, 2015, 111-118.

My PhD Thesis

C. Pelea, Construcţii de multialgebre (versiune preliminară)
C. Pelea, Constructions of multialgebras (a preliminary version of the English abstract)

Books

Gr. Călugăreanu, S. Breaz, C. Modoi, C. Pelea, D. Vălcan, Exercises in Abelian Group Theory, Kluwer Academic Publishers, 2003.
I. Purdea, C. Pelea, Probleme de algebră, EFES, Cluj-Napoca, 2005.
C. Pelea, Construcţii de multialgebre, Editura EFES, Cluj-Napoca, 2006.
I. Purdea, C. Pelea, Probleme de algebră (ediţia a II-a revizuită şi completată), EIKON, Cluj-Napoca, 2008.
S. Breaz, C. Pelea, Teme pentru perfecţionarea profesorilor 2. Elemente de teoria numerelor şi combinatorică prin exerciţii şi probleme, Editura Casa Cărţii de Ştiinţă, Cluj-Napoca, 2017.
S. Breaz, C. Pelea, Exercises in Number Theory, LAP LAMBERT Academic Publishing, 2018.

Preprints