TY  - RPRT
TI  - A precision, active, table-leveling system.
AU  - Debra, D. B.
AU  - Mathiesen, J. C.
AU  - Van Patten, R. A.
PY  - 1968
UR  - https://ntrs.nasa.gov/citations/19680058546
ID  - 19680058546
ER  -