00281nam a2200109Ia 450000500170000000800410001708200120005810000170007024500460008726000300013330000080016320260224040840.0260224s9999||||xx |||||||||||||| ||und||  a004 HAG  aHaggard, G.  0aDiscrete mathematics for computer science  aThomson Wood Worthsc2006  a600