01312nam2-2200397li-450 99000021946020331620180312154632.03-540-53860-70021946USA010021946(ALEPH)000021946USA0100219462001992021991-------y0itay0103----baengGWVariability of active galaxiesproceedings, Heidelberg, Germany 3-5 September 1990W. J. Duschl ... [et al.] (eds.)Berlin [etc.]Springer-Verlagcopyr. 1991XII, 312 p.ill.25 cmLecture notes in physics3770010003151052001Lecture notes in physics377congressiheidelberg1990via latteacongressi1990523112.Duschl,Wolfgang J.Sistema bibliotecario di Ateneo dell' Università di SalernoRICA990000219460203316530 LNP (377)13807/cbs53000224118BKSCI1992021020001110USA01171420020403USA011630PATRY9020040406USA011616RSIAV79020090630USA011041Variability of active galaxies1487811UNISA