1. Duncan, D.B. (1955): Multiple Range and Multiple F-Test. Biometrics, 11, 1-5.
2. Dunn, O.J. (1964): Multiple comparisons using rank sums. Technometrics, 6, 106-107.
3. Dunnett, C.W. (1955): A multiple comparison procedure for comparing several treatments with a control. Am. Stat. Assoc., 50, 1096-1211.
4. FDA. (2005): Guidance for industry estimating the maximum safe starting dose in initial clinical trials for therapeutics in adult healthy volunteers, U.S. department of health and human services food and drug administration center for drug evaluation and research (CDER), Rockville, USA.
5. Finney, D.J. (1995): Thoughts suggested by a recent paper: questions on non-parametric analysis of quantitative data (letter to the editor). J. Toxicol. Sci., 20, 165-170.