共 12 条
- [1] BLOM L, 1957, FUEL, V36, P135
- [3] POTENTIOMETRIC TITRATION OF FULVIC ACID - EQUIVALENCE POINT CALCULATIONS AND ACIDIC FUNCTIONAL GROUPS [J]. CANADIAN JOURNAL OF CHEMISTRY, 1972, 50 (16): : 2680 - &
- [6] MARTIN JP, 1972, P INT M HUMIC SUBSTA, P17
- [7] SCHNITZER M., 1965, SOIL SCI SOC AMER PROC, V29, P274
- [8] Schnitzer M., 1972, HUMIC SUBSTANCES ENV