Duncan's multiple range tests

Tables of critical values

• 5% table
• 1% table

References

• Duncan, D. B. (1955). Multiple range and multiple F tests, Biometrics, 11, 1-42.
  
• Tetsuhisa Miwa (1997). Controversy over multiple comparisons in agronomic research, Japanese J. Appl. Statist., 26, 99 - 109 (in Japanese, sorry!).