Andromeda Galaxy

Vera C. Rubin & W. Kent Ford Jr. (1970). Rotation of the Andromeda Nebula from a Spectroscopic Survey of Emission Regions. The Astrophysical Journal 159, 379. The Astrophysical Journal. https://doi.org/10.1086/150317

@misc{cite:rubin-ford-1970,
  title        = {Rotation of the Andromeda Nebula from a Spectroscopic Survey of Emission Regions},
  author       = {Vera C. Rubin and W. Kent Ford Jr.},
  organization = {The Astrophysical Journal},
  howpublished = {The Astrophysical Journal 159, 379},
  year         = {1970},
  doi          = {10.1086/150317},
  url          = {https://doi.org/10.1086/150317},
  note         = {Andromeda rotation curve — evidence for dark matter.}
}

NASA/IPAC (Caltech) (n.d.). Andromeda Galaxy (M31) — NASA/IPAC Extragalactic Database. NASA/IPAC (Caltech). https://ned.ipac.caltech.edu/

@misc{cite:ned-galaxy-andromeda-galaxy,
  title        = {Andromeda Galaxy (M31) — NASA/IPAC Extragalactic Database},
  organization = {NASA/IPAC (Caltech)},
  year         = {n.d.},
  url          = {https://ned.ipac.caltech.edu/},
  note         = {Positions, redshift, and cross-identifications for Andromeda Galaxy (M31).}
}