@misc{indiciaea228d88afe96,
  title = {Geology, coal quality, and resources of the Antaramut-Kurtan-Dzoragukh coal field, north-central Armenia},
  author = {B.S. Pierce and A. Martirosyan and G. Malkhasian and S. Harutunian and G. Harutunian},
  year = {2001},
  doi = {10.1016/s0166-5162(00)00039-2},
  url = {https://pubs.usgs.gov/publication/70023561},
  note = {Source identifier: 70023561}
}