01356nam2-2200397li-450 99000021923020331620180312154904.03-540-56371-70021923USA010021923(ALEPH)000021923USA0100219232001996051993-------y0itay0103----baengGWCentral activity in galaxiesfrom observational data to astrophysical diagnosticsDublin, Ireland, 10-22 September 1990proceedingsAa. Sandqvist ... [et al.] (eds.)Berlin [etc.]Springer-Verlagcopyr. 1993XIII, 235 p.ill.25 cmLecture notes in physics4130010003151052001Lecture notes in physics413astrofisicacongressi1990congressidublino199052301.Sandqvist,AageSistema bibliotecario di Ateneo dell' Università di SalernoRICA990000219230203316530 LNP (413)18822/cbs53000223128BKSCI1996051120001110USA01171420020403USA011630PATRY9020040406USA011616RSIAV79020090618USA011248Central activity in galaxies1502077UNISA