00310nam a2200109Ia 4500008004100000020001800041082001500059100002100074245007000095260001300165500002200178260604s9999    xx            000 0 und d  a9783662669747  a658.45 PER  aPEREN [FRANZ W.] 0aMATH FOR BUSINESS AND ECONOMICS: COMPENDIUM OF ESSENTIAL FORMULAS  bSPRINGER  aBusiness, Economy