TY  - RPRT
TI  - Ammonia fixation by humic substances: A nitrogen-15 and carbon-13 NMR study
AU  - K. A. Thorn
AU  - M.A. Mikita
PY  - 1992
DO  - 10.1016/0048-9697(92)90017-m
UR  - https://pubs.usgs.gov/publication/70017318
ID  - 70017318
ER  -