%0 Journal Article %A Bongiovanni, G. %A Bovet, D. P. %A Cerioli, A. %T Comments on a Paper of R. A. Brualdi %J Canadian mathematical bulletin %D 1988 %P 394-398 %V 31 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-056-5/ %R 10.4153/CMB-1988-056-5 %F 10_4153_CMB_1988_056_5