00393nam a2200157Ia 4500008004100000020001500041041001200056082001600068100001400084245006400098250000800162260002200170300000800192650001900200700001600219221030s9999    xx            000 0 und d  a8120311477  aEnglish  a105.23bKol  aB. Kolman 0aDiscrete Mathematical Structurescby B. Kolman, R. C. Busby  a3rd  bPHIaNew Delhic0  a524  aBE Mathematics  aR. C. Busby