00294nam a2200097Ia 4500008004100000082001600041100003200057245006600089260003300155300000800188140113s9999 xx 000 0 und d a581.13 M3 a"Muller, A. & Newton, W.E." aNitrogen Fixation: The chemical-biochemical-genetic interface a1983bPlenum PresscNew York a379