@misc{indiciae381d0c5653be,
  title = {Evaluation of current tropospheric mapping functions by Deep Space Network very long baseline interferometry},
  author = {Sovers, O. J. and Lanyi, G. E.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19950010865},
  note = {Source identifier: 19950010865}
}