1. Design of a new feeder for pigs;Baxter;Farm Build. Prog.,1989
2. Influence of frequent moving of pigs among houses on the economics in fattening units;Bilkei;Deutsche Tierarztliche Wochenschrift,1997
3. The specific-stress-free housing system has positive effects on productivity, health and welfare of pigs;Ekkel;J. Anim. Sci.,1995
4. Behavioural perspectives on weaning in domestic pigs;Fraser,1998
5. Genstat 5 Reference Manual;Lawes Agricultural Trust,1989