1. Prediction of the energy value of compound feeds;Alderman,1985
2. Feeding standards for pigs (Bulgarian);Alexiev,1984
3. Tabeller over foderstoffers Sammensaetning m.m.;Andersen,1983
4. The Nutrient Requirements of Pigs;A.R.C.,1981
5. Metabolizable energy values for nutrient requirements for swine;Asplund;Feedstuffs,1969