@inbook{4301,
  author       = {Barton, Nicholas H and Gale, Katherine},
  booktitle    = {Hybrid zones and the evolutionary process},
  editor       = {Harrison, Richard},
  isbn         = { 0-19-506917-X},
  pages        = {13 -- 45},
  publisher    = {Oxford University Press},
  title        = {{Genetic analysis of hybrid zones}},
  doi          = {10.1046/j.1420-9101.1994.7050631.x},
  year         = {1993},
}