@article{02245708, title = {Isomorphic groupoid }, journal = {The New York Journal of Mathematics [electronic only]}, volume = {11}, year = {2005}, pages = {225-245}, zbl = {1091.43001}, language = {en}, url = {http://dml.mathdoc.fr/item/02245708} }
Buneci, Mădălina Roxana. Isomorphic groupoid . The New York Journal of Mathematics [electronic only], Tome 11 (2005) pp. 225-245. http://gdmltest.u-ga.fr/item/02245708/