@misc{indiciae95a88a917c16,
  title = {Potassium selective calix[4]semitubes.},
  author = {Philip R A Webber and Andrew Cowley and Michael G B Drew and Paul D Beer},
  year = {2003},
  doi = {10.1002/chem.200204518},
  url = {https://pubmed.ncbi.nlm.nih.gov/12794888/},
  note = {Source identifier: 12794888}
}