%0 Journal Article %A LaGrange, John D. %T Characterizations of Three Classes of Zero-Divisor Graphs %J Canadian mathematical bulletin %D 2012 %P 127-137 %V 55 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2011-107-3/ %R 10.4153/CMB-2011-107-3 %F 10_4153_CMB_2011_107_3