00462naa a2200169 a 450000100080000000500110000800800410001910000170006024500870007726000090016465300080017365300160018170000170019770000200021470000170023477300410025116032661995-06-27       1981    bl ---       0--  u    #d1 aJACOB, G. S.  aStudies of nitrogen-fixing bacteria using magic angle cross-polarization N-15 NMR.  c1981  a15N  aFACULTATIVO1 aSCHAEFER, J.1 aSTEJSKAL, E. O.1 aMCKAY, R. A.  tFed Proc.gv.40, n.6, p.1870-, 1981.