00811nam0-22003011i-450-990001115520403321981-02-0516-3000111552FED01000111552(Aleph)000111552FED0100011155220000920d1993----km-y0itay50------baengEuclidean Quantum GravityG.W. Gibbons, S.W. HawkingSingapore [etc.]World Scientific1993RelativitàGravità530.11Gibbons,Gary W.26128Hawking,Stephen WilliamITUNINARICAUNIMARCBK99000111552040332123-23419194FI1FI1Euclidean quantum gravity187575UNINAING01