@misc{indiciaeb13893174b1a,
  title = {Mechanism of formation of humus coatings on mineral surfaces 3. Composition of adsorbed organic acids from compost leachate on alumina by solid-state 13C NMR},
  author = {R.L. Wershaw and E.C. Llaguno and J.A. Leenheer},
  year = {1996},
  doi = {10.1016/0927-7757(95)03402-1},
  url = {https://pubs.usgs.gov/publication/70018685},
  note = {Source identifier: 70018685}
}