@misc{indiciaeb1a21a5efcdc,
  title = {Spalled, aerodynamically modified moldavite from Slavice, Moravia, Czechoslovakia},
  author = {E. C. T. Chao},
  year = {1964},
  doi = {10.1126/science.146.3645.790},
  url = {https://pubs.usgs.gov/publication/70010470},
  note = {Source identifier: 70010470}
}