@misc{indiciae15f6dee2b26a,
  title = {A low-order global gravity field of Venus and dynamical implications},
  author = {Ananda, M. P. and Sjogren, W. L. and Phillips, R. J. and Wimberly, R. N. and Bills, B. G.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19810042428},
  note = {Source identifier: 19810042428}
}