@misc{indiciaec768237baba0,
  title = {Flight Test Demonstrate Sub 50 cms RMS Vertical WADGPS Positioning},
  author = {Muellerschoen, R. and Bertiger, W. and Whitehead, M.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20060034316},
  note = {Source identifier: 20060034316}
}