00359nam a2200133Ia 4500008004100000020001500041041001200056082001600068100002300084245007100107260002500178300000800203650001400211221030s9999 xx 000 0 und d a0070604851 aEnglish a105.23bBal aV. K. Balakrishnan 0aSchaum`s Theory & Problems of Combinatoricscby V. K. Balakrishnan bTMHaNew Delhic2005 a200 aComputers