@TechReport{Langdon97,
  author      = "W. B. Langdon",
  title       = {Fitness Causes Bloat in Variable Size Representations},
  institution = {University of Birmingham, School of Computer Science},
  number      = {CSRP-97-14},
  month       = {May},
  year        = {1997},
  file        = {/1997/CSRP-97-14.ps.gz},
  url         = {ftp://ftp.cs.bham.ac.uk/pub/tech-reports/1997/CSRP-97-14.ps.gz},
  abstract    = {We argue based upon the numbers of representations of given
                 length, that increase in representation length is inherent
                 in using a fixed evaluation function with a discrete but
                 variable length representation. Two examples of this are
                 analysed, including the use of Price's Theorem. Both
                 examples confirm the tendency for solutions to grow in
                 size is caused by fitness based selection.
                 },
}