@misc{indiciae8303d3920447,
  title = {Simultaneous determination of tantalum and hafnium in silicates by neutron activation analysis},
  author = {L. P. Greenland},
  year = {1968},
  doi = {10.1016/s0003-2670(01)80327-5},
  url = {https://pubs.usgs.gov/publication/70011531},
  note = {Source identifier: 70011531}
}