1. Fodringsprincipper for malkekøer: Betydning for foderomsætning og produktion;Aaes,1990
2. Foderoptagelsessystem for ungkvæg;Andersen,1987
3. Tables of feeds used in France;Andrieu,1989
4. Technical Committee on Responses to Nutrients, Report no. 5;AFRC (Agricultural and Food Research Council),1990
5. Technical Committee on Responses to Nutrients, Report no. 8;AFRC (Agricultural and Food Research Council),1991