1. Summary of the economic studies of the pseudorabies pilot projects;Alderink,1986
2. Eradication of pseudorabies: Aerosol spread between herds;Andersen,1991
3. Pseudorabies virus transmission: Survival of pseudorabies virus transmission outside the living host;Beran,1991
4. On the epidemiology of Aujeszky's disease in Denmark and the possibilities of its control;Bitsch;Curr. Top. Vet. Anim. Sci.,1982
5. Point Pattern Analysis;Boots,1988