@misc{indiciae491f6d1a515b,
  title = {Sea-floor gouges caused by migrating gray whales off northern California},
  author = {D.A. Cacchione and D.E. Drake and M.E. Field and G. B. Tate},
  year = {1987},
  doi = {10.1016/0278-4343(87)90021-5},
  url = {https://pubs.usgs.gov/publication/70015309},
  note = {Source identifier: 70015309}
}