00277nam a2200109Ia 4500008004100000020001800041100004600059245002000105250000800125260002000133650001400153240827s9999    xx            000 0 und d  a9780262025539  aBarro, Robert J. and Xavier Sala-I-Martin 0aEconomic Growth  a2nd  bMIT Pressc2004  aEconomics