@misc{indiciaecec094389672,
  title = {Anticorrelated seismic velocity anomalies from post-perovskite in the lowermost mantle},
  author = {Alexander R. Hutko and T. Lay and Justin Revenaugh and E.J. Garnero},
  year = {2008},
  doi = {10.1126/science.1155822},
  url = {https://pubs.usgs.gov/publication/70000519},
  note = {Source identifier: 70000519}
}