1. Selenium concentration in natural and environmental waters;Conde;Chem. Rev.,1997
2. Hou, S.F., 1990. Differentiation of soil Se in landscapes in warm Temperate Zone. In: Cycling of Selenium in Low-Se Eco-environments in China. Institute of Applied Ecology Publication, Beijing, China.
3. Factors that influencing the chemical behavior of Se in China;Hou;Geographical Res. (China),1991
4. Geographic distribution of Se and Kaschin-beck disease in Shanxi Province, China;Jiang;Chinese J. Epidemiol.,1989
5. Environmental implications of excessive selenium;Lemly;Biomed. Environ. Sci.,1997