@misc{indiciaeaf6a3b3030ed,
  title = {Boron-oxygen polyanion in the crystal structure of tunellite},
  author = {J. R. Clark},
  year = {1963},
  doi = {10.1126/science.141.3586.1178},
  url = {https://pubs.usgs.gov/publication/70010787},
  note = {Source identifier: 70010787}
}