1. European patent 0321981B1. EP, (1987). Danish Meat Research Institute, Roskilde.
2. European patent 0499550A1. EP, (1991). Norma Class, Paris.
3. European patent 0632960A1. EP, (1993). Norma Class, Paris.
4. European patent 96301383.4. EP, (1996). Danish Meat Research Institute, Roskilde.
5. BCC-2 for Objective Beef Carcass Classification and Prediction of Carcass Composition;Madsen;ICoMST 1996, Lillehammer,1996