00719nam0-22002771i-450-990001064470403321000106447FED01000106447(Aleph)000106447FED0100010644720000920d1964----km-y0itay50------baengPrinciples of Random WalkFrank SpitzerPrinceton [N.J.]Van Nostrand1964ProbabilitàStatistica519Spitzer,Frank41727ITUNINARICAUNIMARCBK99000106447040332118-0613959FI1FI1Principles of Random Walk340011UNINAING01