@article{1256047478, author = {Voss, Edward R.}, title = {On the isomorphism problem for incidence rings}, journal = {Illinois J. Math.}, volume = {24}, number = {4}, year = {1980}, pages = { 624-638}, language = {en}, url = {http://dml.mathdoc.fr/item/1256047478} }
Voss, Edward R. On the isomorphism problem for incidence rings. Illinois J. Math., Tome 24 (1980) no. 4, pp. 624-638. http://gdmltest.u-ga.fr/item/1256047478/