00466nam a2200133Ia 4500008004100000020001500041082002000056100005300076245003600129260004900165300002500214490006000239700003300299260316b        |||||||| |||| 00| 0 eng d  a0521865654  a510.3bEn56.108  aEncyclopedia of Mathematics and its applications  aCombinatorial matrix classesb/  aNew York:bCambridge University Press,c2006  aix-544p. Bibl. Index  aEncyclopedia of Mathematics and its applications v 108  aBrualdi, Richard A.eauthor.