00398naa a2200133 a 450000100080000000500110000800800410001910000170006024500700007726000090014765000160015665000160017277300760018816159991995-06-27 1990 bl --- 0-- u #d1 aSMITH, B. E. aRecent studies on the biochemistry and chemistry of nitrogenases. c1990 aBioquĂ­mica aNitrogenase tIn: Nitrogen Fixation: Achievements and Objectives.gv., p. 3-13, 1990.