00456nam a2200133Ia 4500008004100000082001900041100004200060245004800102260003800150300000800188942000700196952010200203999001700305140113s9999    xx            000 0 und d  a631.461.5   L1  a"Mishustin, E.N. & Shil-Nikova, U.K."  aBiological Fixation of Atmospheric Nitrogen  a1971bMacmillan & Co.Ltd.cLondon  a420  cBK  00104070aVTLbVTLd2014-01-13l0o631.461.5   L1pVBK2196r2014-01-13 00:00:00w2014-01-13yBK  c58875d58875