01025nam0-22003491i-450-99000110430040332120071203145902.03-540-52648-X000110430FED01000110430(Aleph)000110430FED0100011043020001205d1990----km-y0itay50------baengGravitational LensingProceedings of the Workshop held in Toulouse, France September 13-15, 1989Yannick Mellier, Bernard Fort, Geneviève Soucail (Eds.)Berlin [etc.]Springer-Verlag1990Lecture notes in physics360AstronomiaAstrofisicaCosmologia520523Mellier,Yannick52668Fort,B.Soucail,GenevièveITUNINARICAUNIMARCBK99000110430040332119-22417860FI1FI1Gravitational Lensing338305UNINA