@article{1256045973,
author = {Haack, Joel K.},
title = {Isomorphisms of incidence rings},
journal = {Illinois J. Math.},
volume = {28},
number = {4},
year = {1984},
pages = { 676-683},
language = {en},
url = {http://dml.mathdoc.fr/item/1256045973}
}
Haack, Joel K. Isomorphisms of incidence rings. Illinois J. Math., Tome 28 (1984) no. 4, pp. 676-683. http://gdmltest.u-ga.fr/item/1256045973/