Authors: Stark, KDC Mortensen, S Olsen, AM Barfod, K Botner, A Lavritsen, DT Strandbygard, B

Citation: Kdc. Stark et al., Designing serological surveillance programmes to document freedom from disease with special reference to exotic viral diseases of pigs in Denmark, REV SCI TEC, 19(3), 2000, pp. 715-724