TY  - RPRT
TI  - Compression of ephemerides by discrete Chebyshev approximations
AU  - Pickard, H. M.
AU  - Deprit, A.
AU  - Poplarchek, W.
PY  - 1978
UR  - https://ntrs.nasa.gov/citations/19790005951
ID  - 19790005951
ER  -