@article{cameron_baldock:1998a,
   author = {Cameron, AR and Baldock, FC},
   title = {A new probability formula for surveys to substantiate freedom from disease},
   journal = {Preventive Veterinary Medicine},
   volume = {34},
   pages = {1 - 17},
   year = {1998a}
}

@article{thacker_berkelman:1988,
   author = {Thacker, SB and Berkelman, RL},
   title = {{Public health surveillance in the United States}},
   journal = {Epidemiological Reviews},
   volume = {10},
   pages = {164 - 190},
   year = {1988}
}

@inbook{oie:2022,
   author = {World Organisation for Animal Health},
   title = {{Terrestrial Animal Health Code}},
   publisher = {World Organisation for Animal Health},
   address = {Paris},
   year = {2022}
}

