@misc{indiciaee68f08299a73,
  title = {Relation between dual acidity and structure of H-montmorillonite},
  author = {A. M. Pommer},
  year = {1963},
  doi = {10.3133/pp386c},
  url = {https://pubs.usgs.gov/publication/pp386C},
  note = {Source identifier: pp386C}
}