@misc{indiciae690ef0c5dbf7,
  title = {Satellite laser station Helwan status 1992},
  author = {Cech, M. and Hamal, Karel and Jelinkova, Helena and Novotny, Antonin and Prochazka, Ivan and Baghos, B. B. and Helali, Y. and Tawadros, M. J.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940011148},
  note = {Source identifier: 19940011148}
}