@article{1255380676,
author = {Hughes, D. R.},
title = {Generalized incidence matrices over group algebras},
journal = {Illinois J. Math.},
volume = {1},
number = {1},
year = {1957},
pages = { 545-551},
language = {en},
url = {http://dml.mathdoc.fr/item/1255380676}
}
Hughes, D. R. Generalized incidence matrices over group algebras. Illinois J. Math., Tome 1 (1957) no. 1, pp. 545-551. http://gdmltest.u-ga.fr/item/1255380676/