1. Contribution of various factors to genetic evaluations of stallions;Árnason;Livest. Prod. Sci.,1987
2. Árnason, Th., 1993. Rapport om genetiska analyser av kvalitetsbedömningar av svenska fyraåriga ridhästar 1973–1993. (Report on genetic analysis of Riding Horse Quality Test data for Swedish 4-year-old horses). IHBC AB Knubbo, Morgongåva, Sweden, 25 pp.
3. Environmental and Genetic Influence on Sow Longevity;Cederberg Ringmar,1999
4. Extension of survival analysis models to discrete measures of longevity;Ducrocq;INTERBULL Bull.,1999
5. Ducrocq, V., Sölkner, J., 1999. The Survival Kit-V3.1. http://www.boku.ac.at/nuwi/popgen