Hybrids and hybrid zones : historical perspective / Richard G. Harrison
Genetic analysis of hybrid zones / Nicholas H. Barton and Katherine S. Gale
Reinforcement : origin, dynamics, and fate of an evolutionary hypothesis / Daniel J. Howard
Introgression and its consequences in plants / Loren H. Rieseberg and Jonathan F. Wendel
Natural hybridization in Louisiana irises : genetic variation and ecological determinants / Michael L. Arnold and Bobby D. Bennett
After the ice : Parallelus meets Erythropus in the Pyrenees / Godfrey M. Hewitt
Genomic and environmental determinants of a narrow hybrid zone : cause or coincidence / David D. Shaw ...[et al.]
Nature of selection in the northern flicker hybrid zone and its implications for speciation theory / William S. Moore and Jeff T. Price.

(cont) Speciation, raciation, and color pattern evolution in Heliconius butterflies : evidence from hybrid zones / James Mallet
Analysis of hybrid zones with Bombina / Jacek M. Szymura
Hybridization and hybrid zones in pocket gophers (Rodentia , Geomyidae)
Chromosomal hybrid zones in Eutherian mammals / Jeremy B. Searle.