@misc{indiciae7fe21990bce1,
  title = {Killer clays! Natural antibacterial clay minerals},
  author = {L.B. Williams and M. Holland and D. D. Eberl and T. Brunet and L. B. De Courrsou},
  year = {2004},
  url = {https://pubs.usgs.gov/publication/70026833},
  note = {Source identifier: 70026833}
}