1.Mike W.L. Cheung

Comparison of Approaches to Constructing Confidence Intervals for Mediating Effects Using Structural Equation Models
2007

http://www.tandfonline.com/doi/pdf/10.1080/10705510709336745#.Uc1En5YbDWk
2.Mike W.L. Cheung
Constructing Approximate Confidence Intervals forParameters With Structural Equation Models
2009
http://www.tandfonline.com/doi/abs/10.1080/10705510902751291#.Uc1F1pYbDWk