References
- Mc Farland , D. 1993 . Animal Behavior , Harlow : Longman Group .
- Slater , PJB . 1983 . The development of individual behavior Animal Behavior ‐ Genes, Development and Learning , Edited by: Halliday , TR and Slater , PJB . Oxford : Blackwell Scientific Publications .
- Knol , BW , Schut , A and Helder , J . 1988 . Wie is er de baas? Probleemgedrag bij de hond ‐ theorie en praktijk . Diergeneeskd Mem , 35 : 105 – 43 .
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, PO Box 80.154, NL‐3508 TD Utrecht, the Netherlands.