1. Evolución de las características morfológicas de la ubre de ovejas de raza Latxa a lo largo del periodo de ordeño;Arranz,1989
2. Estimation of genetic parameters for linear and miscellaneous type traits in Holstein-Friesian dairy cattle;Brotherstone;Livest. Prod. Sci.,1990
3. Amelioration genetique de la forme de la mamelle de la brebis Sarde en vue de la traite mecanique: Resultats préliminaires;Casu,1989
4. Factors affecting variation of udder traits in dairy ewes;Fernández;J. Dairy Sci.,1995
5. Relationships among udder types and relative udder size and milk production as well as their changes during the succesives lactations;Kukovics,1993