TY  - GEN
AU  - KORVER, S.
AU  - AVERDUNK,G.
AU  - BECH ANDERSEN,B.
ED  - 
ED  - 
ED  - EAAP-seminar study commission.
TI  - Performance testing of all bulls for efficiency and beef production in dairy and dual- purpose breeds.Proceedings EAAP-seminar study commission on cattle production and animal genetics
SN  - 90-220-0924-6
CY  - Wageningen.
ER  -