1. Hyperalgebraic system;Ameri;Italian J. Pure Appl. Math.,1999
2. Fundamental relation on (m,n)-ary hypermodules on (m,n)-ary hyperring;Anvariyeh;Ars Combin.,2010
3. On semihypergroup and hypergroup homomorphisms;Bonansinga;Boll. Unione. Mat. Ital. B,1982
4. S.D. Comer, Extension of Polygroups by Polygroups and their Representations using Colour Schemes, Lecture Notes in Meth., No 1004, Universal Algebra and Lattice Theory, 1982, pp. 91–103.
5. Constructions of color schemes;Comer;Acta Univ. Carolin. Math. Phys.,1983