X-RAY PHOTOELECTRON SPECTROSCOPIC STUDY OF METAL-FULVIC ACID COMPLEXES
WANG DIAN-XUN, ZHAO LU-JI, ZHANG DE-HE, CHEN CHUAN-ZHENG, LI SHAO-YU, KANG BING-JIE
Acta Chimica Sinica . 1982, (12): 1172 -1176 .