@misc{indiciaebfa13b0ba339,
  title = {Variation of the 3-μm absorption feature on Mars: observations over eastern Valles Marineris by the mariner 6 infrared spectrometer},
  author = {Wendy M. Calvin},
  year = {1997},
  doi = {10.1029/96je03767},
  url = {https://pubs.usgs.gov/publication/70019566},
  note = {Source identifier: 70019566}
}