Siegel S, Castellan Jr. NJ (1988) Nonparametric statistics for the behavioral sciences. McGraw Hill Book Company New York ISBN 0-07-100326-6 p. 45-51; p. 51-55.

Table of significance from: Massey FJ Jr. (1951) The Kolmogorov-Smirnov test for goodness of fit. Journal of American Statistical Association 40:70

Shapiro SS, Francia RS (1972) An Approximate Analysis of Variance Test for Normality. J Am Stat Ass 67:337 p 215-216.

Royston JP (1983) A Simple Test for Evaluating the Shapiro-Francia W' Test of Non-Normality. The Statistician 32:3 p. 297-300

NIST webpage http://www.itl.nist.gov/div898/handbook/eda/section3/eda35b.htm

QStat page on standard error of skewness and kurtosis http://statgen.ncsu.edu/qtlcart/manual/node71.html