00334nam a2200109Ia 4500008004100000020001800041082001500059100002600074245007000100260004600170300000800216190710s9999    xx            000 0 und d  a81-224-1115-0  a512.5 Si65  aSeth, M N, ed. et.al. 0aTopics in discrete mathematics : codes tableaux design and graphs  aNew DelhibNew Age International Prc1997  a236