共 50 条
- [43] STUDIES ON THE FULVIC AND HUMIC ACIDS OF MINNESOTA PEAT ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1985, 190 (SEP): : 116 - AGD
- [44] STUDIES ON THE FULVIC AND HUMIC ACIDS OF MINNESOTA PEAT ACS SYMPOSIUM SERIES, 1987, 330 : 384 - 394
- [47] SPECTROPHOTOMETRIC STUDIES ON A HUMIC ACID FRACTION ACTA CHEMICA SCANDINAVICA, 1968, 22 (07): : 2384 - +