00561nam a2200157Ia 4500008004100000082001700041100009600058245003900154260003800193300001300231490004700244600002300291600001500314600004100329650003300370140224s9999    xx            000 0 und d  a681.138.1 M4  aInternational Symposium on Nitrogen Fixation with Nonlegumes, 3rd Helsinki, Sept.2-8, 1984.  aNitrogen fixation with nonlegumes/  aDordrechtbMartinus Nijhoffc1986  axi,360p.  aDevelopments in Plant and Soil Science: 21  aSkinner, F.A., ed.  aUomala, P.  aEdited by F.A.Skinner (and) P.Uomala  aNitrogen fixation,Nonlegumes