@article{
  author = {Azarvand, Bahare, Anvarian, Satar},
  title = {Determination and Measurement of Natural Radioactivity in Environmental Samples of Songons Mine in Iran},
  journal = {Journal of Environmental Science and Technology},
  year = {2011},
  volume = {13},
  number = {1},
  pages = {49-58},
  doi = {}
}