01077nam0-22003491i-450-9900011069504033213-540-53860-7000110695FED01000110695(Aleph)000110695FED0100011069520000920d1991----km-y0itay50------baengVariability of Active GalaxiesProceedings of a Workshop of the Sonderforschungbereich 328 held at Heidelberg, Germany 3-5 September 1990Wolfgang J. Duschl, Stefan J. Wagner, Max Camenzind (Eds.)Berlin [etc.]Springer-Verlag1991Lecture notes in physics377AstronomiaAstrofisicaCosmologia520523Duschl,Wolfgang J.52830Camenzind,MaxWagner,Stefan J.ITUNINARICAUNIMARCBK99000110695040332119-24618205FI1FI1Variability of Active Galaxies337664UNINAING01