%0 Journal Article %A Bueno, M.I. %A Furtado, S. %T On the exponent of $r$-regular primitive matrices %J The electronic journal of linear algebra %D 2008 %P 28-47 %V 17 %I mathdoc %U http://geodesic.mathdoc.fr/item/ELA_2008__17__a41/ %G en %F ELA_2008__17__a41