@misc{indiciaeeb1a086d4248,
  title = {Preface},
  author = {J.P.-Y. Maa and L.P. Sanford and D. H. Schoellhamer},
  year = {2007},
  doi = {10.1016/s1568-2692(07)80002-7},
  url = {https://pubs.usgs.gov/publication/70030179},
  note = {Source identifier: 70030179}
}