1. Organization systems and dominance in feral horses in the Grand Canyon;Berger;Behav. Ecol. Sociobiol.,1977
2. Mother-young relationships and related behavior among free-ranging Appaloosa horses;Blakeslee,1974
3. The natality, foal survivorship and mare-foal behavior of feral horses in Wyoming's Red Desert;Boyd,1980
4. Ranks and relationships in Highland ponies and Highland cattle;Clutton Brock;Z. Tierpsychol.,1976
5. Drei unterschiedliche Verhaltensweisen von Islandpferden in norddeutchen Freigehegen;Ebhardt;Saugetierk. Mitt.,1957