@article{GDZPPN001249029, title = {A study of operands in terms of maximal generalized orbits.}, journal = {Semigroup forum}, volume = {7}, year = {1974}, pages = {69-74}, zbl = {0256.20092}, url = {http://dml.mathdoc.fr/item/GDZPPN001249029} }
Nico, W.R. A study of operands in terms of maximal generalized orbits.. Semigroup forum, Tome 7 (1974) pp. 69-74. http://gdmltest.u-ga.fr/item/GDZPPN001249029/