@misc{indiciae205270df12cd,
  title = {Revised age of the Rockland tephra, northern California: Implications for climate and stratigraphic reconstructions in the western United States},
  author = {M. A. Lanphere and D.E. Champion and M.A. Clynne and L.J.P. Muffler},
  year = {1999},
  doi = {10.1130/0091-7613(1999)027<0135:raotrt>2.3.co;2},
  url = {https://pubs.usgs.gov/publication/70021889},
  note = {Source identifier: 70021889}
}