@misc{indiciae017a8873712a,
  title = {Measuring the Lense-Thirring precession using a second Lageos satellite},
  author = {Tapley, B. D. and Ciufolini, I.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19910004157},
  note = {Source identifier: 19910004157}
}