TY  - RPRT
TI  - Compact reflection nebulae, a transit phase of evolution from post-AGB to planetary nebulae
AU  - Hu, J. Y.
AU  - Slijkhuis, S.
PY  - 1989
UR  - https://ntrs.nasa.gov/citations/19910005716
ID  - 19910005716
ER  -