00690nam0-22002651i-450-990001254560403321000125456FED01000125456(Aleph)000125456FED0100012545620000920d1968----km-y0itay50------baengAsymptotic Approximationsby Jeffreyss.l.Clarendon Press1968Funzioni specialiJeffreys,Harold12419ITUNINARICAUNIMARCBK9900012545604033215-D-159269MA1MA133-02Asymptotic approximations117893UNINAING01