@article{kauppinen_1983, 
  title={Prevalence of Bovine KetØsis in Relation to Number and Stage of Lactation}, 
  volume={24}, 
  DOI={10.1186/bf03546709}, 
  publisher={Springer Science and Business Media LLC}, 
  author={Kauppinen, Kauko}, 
  year={1983}
  }