00819nam0-22002891i-450-9900010235404033210-88318-935-6000102354FED01000102354(Aleph)000102354FED0100010235420000920d1993----km-y0itay50------baengTime MachinesTime Travel in Physics, Metaphysics, and Science FictionPaul J. NahinNew YorkAmerican Institute of Physics1993xvii, 408 p.ill.25 cmFondamenti della fisica530Nahin,Paul J.48655ITUNINARICAUNIMARCBK9900010235404033214B-17419431FI1FI1Time Machines339656UNINAING01