@misc{indiciae30b7e69d85dc,
  title = {Urea determination using pH-enzyme electrode.},
  author = {R Koncki and A Chudzik and I Walcerz},
  year = {1999},
  doi = {10.1016/s0731-7085(99)00094-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/10701912/},
  note = {Source identifier: 10701912}
}