1. Kemisk sammansättning av svenskt korn;Åman,1984
2. Official Methods of Analysis,1965
3. The magnitude of the microbial fermentation in the rumen;Carrol;Appl. Microbiol.,1954
4. Regulation of Lactate Metabolism in the Rumen;Counotte,1981
5. An Introduction to Rumen Studies;Czerkawski,1986