@misc{indiciaea68eebd626b1,
  title = {Microtektite discovered in Beijing},
  author = {Dingrong, L. and Ande, W. and Zhenzhao, X. and Wanzhen, W. and Qingsi, L. and Jingxian, F. and Yuzhu, H.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19850002587},
  note = {Source identifier: 19850002587}
}