200 NONPARAMETRIC STATISTICS
Hoaglin, D. C., Mosteller, F. and Tukey, J. W. [1983]. Understanding Robust and Exploratory
Data Analysis, Hoboken, NJ: Wiley.
Sprent, P. and Smeeton, N. C. [2007]. Applied Nonparametric Statistical Methods, 4th ed.,
Boca Raton, FL: Chapman & Hall/CRC, 1-10, 27-29,46-66, 128-133, 151-161, 286-
289.
van Belle, G., Fisher, L. D., Heagerty, P. J. and Lumley, T. [2004]. Biostatistics: A Methodology
for the Health Sciences, Hoboken, NJ: Wiley, 256, 258-266, 327-328.