TY  - RPRT
TI  - Comets in the post-Halley era. Vols. 1 & 2
AU  - Newburn, R. L., Jr.
AU  - Neugebauer, M.
AU  - Rahe, J.
PY  - 1991
UR  - https://ntrs.nasa.gov/citations/19930029554
ID  - 19930029554
ER  -