TY  - BOOK
AU  - Fricke, K. J., ed.
AU  - Khachikian, E. Ye., ed.
AU  - Melnick, J., ed. 
TI  - Observational evidence of activity in galaxies
T2  - IAU Symposium; no. 121
SN  - 90-277-2474-1
PY  - 1987///
CY  - Dordrecht
PB  - D. Reidel Publishing
KW  - Active galaxies
KW  - Astronomy and Astrophysics thesaurus
KW  - Radio sources
KW  - Seyfert galaxies
ER  -