TY  - RPRT
TI  - New structural information on a humic acid from two-dimensional 1H-13C correlation solid-state nuclear magnetic resonance.
AU  - J D Mao
AU  - B Xing
AU  - K Schmidt-Rohr
PY  - 2001
DO  - 10.1021/es0014988
UR  - https://pubmed.ncbi.nlm.nih.gov/11393970/
ID  - 11393970
ER  -