1. Animal Welfare: Fear and Distress;Appleby,1997
2. AWIN Welfare Assessment Protocol for Horses;AWIN,2015
3. Statistical methods for assessing agreement between two methods of clinical measurement;Bland;Lancet,1986
4. Improving farm animal welfare - science and society working together: the welfare quality approach;Blokhuis,2013
5. Integration of data collected on farms or at slaughter to generate an overall assessment of animal welfare;Botreau,2013