00326nam a2200133Ia 4500008004100000020001500041041001200056082001600068100002000084245002500104260003600129300000800165650001900173221030s9999 xx 000 0 und d a8178082799 aEnglish a105.23bJoh aR. Johnsonbaugh 0aDiscrete Mathematics bAddison WesleyaNew Delhic2001 a621 aBE Mathematics