00603naa a2200193 a 450000100080000000500110000800800410001902400550006010000170011524501020013226000090023465000160024365300160025965300220027570000180029770000200031570000130033577300610034820134472021-11-09       2015    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1016/j.soilbio.2015.02.0272DOI1 aCHALK, P. M.  aOn the usage of absolute (x) and relative (delta) values of 15N abundance.h[electronic resource]  c2015  aNitrogênio  aAbundância  aFração atômica1 aINACIO, C. T.1 aCRASWELL, E. T.1 aCHEN, D.  tSoil Biology & Biochemistrygv. 85, p. 51-53, Jun. 2015.