Study on the lsothermal Solubility of Quaternary Systems KCl(K2SO4)-MgCl2(MgSO4)-CO(NH2)2-H2O
Wei Xiao-Lan, Zhang Feng-Xing, Guo Zhi-Zhen, Shi Qi-Zhen
Acta Phys. -Chim. Sin. . 1998, (03): 237 -242 .  DOI: 10.3866/PKU.WHXB19980309