1. Comparison of proven sires from five Holstein- Friesian strains in high-yield Israeli dairy herds;Bar-Anan;Livest. Prod. Sci.,1987
2. Vergleichende Untersuchungen der Leistungen von Deutschen Schwarzbunten, Holstein- Friesians und deren Kreuzungen;Ernst;Der Tierzuechter,1986
3. The International Friesian Strain Comparison Trial, a World Perspective;Jasiorowski,1988
4. The role of crossbreeding programs for intensive milk production in temperate climates;McAllister,1986
5. Crossbreeding as a system of mating for dairy production. Southern Coop. Ser.;McDowell,1982