1. Ammonia treatment of straw;Arnasson,1977
2. Official Methods of Analysis;Association of Official Agricultural Chemists,1960
3. Official Methods of Analysis;Association of Official Agricultural Chemists,1965
4. Conversion of grain straw and lupins into feeds of high nutritive value;Beckmann;Chem. Abstr.,1922
5. Plane of nutrition and starch equivalents;Blaxter;J. Agric. Sci., Cambridge,1955