@misc{indiciae13a6744180ef,
  title = {Venus Gravity: 180th Degree and Order Model},
  author = {Konopliv, A. S. and Banerdt, W. B. and Sjogren, W. L.},
  year = {1998},
  url = {https://ntrs.nasa.gov/citations/20060041386},
  note = {Source identifier: 20060041386}
}