@misc{indiciaee7f18dbb54ee,
  title = {On estimating the Venus spin vector from data obtained during the planetary explorer mission},
  author = {Argentiero, P. and Wyatt, G.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710029101},
  note = {Source identifier: 19710029101}
}