00445nam a2200145Ia 4500008004100000020001500041082001600056100002100072245009100093260004400184300000800228650002300236650001800259653002200277170901s2000    xx            000 0 und d  a1898486190  a589.7bT78P  aTriplett,Eric W. 0aProkaryotic Nitrogen FixationbA Model System for the Analysis of a Biological Process  aEnglandbHorizon Scientific Pressc2000  a800  aBotanical sciences  aPure Sciences  aNitrogen fixation