@article{bennett_et_al:1991,
   author = {Bennett, S and Woods, T and Liyanage, W and Smith, D},
   title = {A simplified general method for cluster-sample surveys of health in developing countries},
   journal = {World Health Statistics Quarterly},
   volume = {44},
   pages = {98 - 106},
   year = {1991}
}

@article{otte_gumm:1997,
   author = {Otte, JM and Gumm, ID},
   title = {Intra-cluster correlation coefficients of 20 infections calculated from the results of cluster-sample surveys},
   journal = {Preventive Veterinary Medicine},
   volume = {31},
   pages = {147 - 150},
   year = {1997}
}

@article{stevenson:2021,
   author = {Stevenson, MA},
   title = {Sample size estimation in veterinary epidemiological research},
   journal = {Frontiers in Veterinary Science},
   volume = {7},
   pages = {539573},
   year = {2021},
   type = {Journal Article}
}

