TY  - RPRT
TI  - LIBRA: An inexpensive geodetic network densification system
AU  - Fliegel, H. F.
AU  - Gantsweg, M.
AU  - Callahan, P. S.
PY  - 1975
UR  - https://ntrs.nasa.gov/citations/19750023106
ID  - 19750023106
ER  -