The Royal Road Functions: Description, Intent and Experimentation. - R. J. Quick; Victor J. Rayward-Smith; G. D. Smith (Evolutionary Computing, AISB Workshop, 1996)

Fitness Distance Correlation and Ridge Functions. - R. J. Quick; Victor J. Rayward-Smith; G. D. Smith (PPSN, 1998)

An analysis of the use of general methods to assess the difficulty of function optimization for genetic algorithms. - R. J. Quick (2001)