On enumeration of hypergroups of order 3. - Charalampos Tsitouras; Christos G. Massouros (Comput. Math. Appl., 2010)

Transposition Hv-Groups. - Christos G. Massouros; A. Dramalidis (Ars Comb., 2012)

Enumeration of Rosenberg-type hypercompositional structures defined by binary relations. - Charalampos Tsitouras; Christos G. Massouros (Eur. J. Comb., 2012)