共 50 条
- [22] OXIDATION OF HUMIC-ACID FRACTIONS AND DERIVATIVES BY POTASSIUM PERMANGANATE IN AN ALKALINE MEDIUM SOVIET SOIL SCIENCE-USSR, 1971, 3 (03): : 304 - +
- [26] Spectral Study of Modified Humic Acids from Lignite IIND INTERNATIONAL INNOVATIVE MINING SYMPOSIUM (DEVOTED TO RUSSIAN FEDERATION YEAR OF ENVIRONMENT), 2017, 21
- [30] ALKALINE-DEGRADATION OF PEAT HUMIC ACIDS .2. IDENTIFICATION OF HYDROPHILIC PRODUCTS ACTA CHEMICA SCANDINAVICA, 1992, 46 (05): : 459 - 463