@misc{indiciae8ad2366bed68,
  title = {The spin vector of Venus},
  author = {Shapiro, I. I. and Chandler, J. F. and Campbell, D. B. and Hine, A. A. and Stacy, N. J. S.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900066049},
  note = {Source identifier: 19900066049}
}