1. Veiledning i melkemaskinkontroll. Stensil;Alfnes,1975
2. Construction and performance of milking plants on Norwegian diary farms;Bakken,1980
3. The relationship between environmental conditions and bovine udder diseases in Norwegian dairy herds;Bakken,1982
4. SAS user's guide;Barr,1979
5. Factors affecting the rate of machine milking;Baxter;J. Dairy. Res.,1950