@misc{indiciae0f70065edc92,
  title = {Strontium and magnesium contents of some natural peralkaline silicic glasses and their petrogenetic significance},
  author = {Donald C. Noble and Joseph Haffty and Carl E. Hedge},
  year = {1969},
  doi = {10.2475/ajs.267.5.598},
  url = {https://pubs.usgs.gov/publication/70223816},
  note = {Source identifier: 70223816}
}