TY  - RPRT
TI  - Density wave triggered star formation in grand design spirals
AU  - Cepa, J.
AU  - Beckman, J. E.
AU  - Knapen, J. H.
PY  - 1993
UR  - https://ntrs.nasa.gov/citations/19930017631
ID  - 19930017631
ER  -