求下面两篇关于Johnson转换的文章，请各位大哥大姐帮帮忙！
Nicholas R. Farnum (1996). "Using Johnson Curves to Describe Non-Normal Process Data", Quality Engineering, Vol. 9, No. 2, December, 329-336.

Y. Chou, A.M. Polansky, and R.L. Mason (1998). "Transforming Nonnormal Data to Normality in Statistical Process Control," Journal of Quality Technology, 30, April, 133-141.