00817nam0-2200313---450-99001003786040332120160210065507.0978-0-19-921936-0vol. 1001003786FED01001003786(Aleph)001003786FED0100100378620160210d2011----km-y0itay50------baengGBa---a---001yyCollected worksRoger PenroseOxford [etc.]Oxford University Press20116 v.ill.25 cm1.: 1953-1967.RelativitàGravitàPenrose,Roger <1931- >ITUNINARICAUNIMARCBK99001003786040332123-343DIPFIS 24566FI1FI1UNINA