00397nam a2200145Ia 4500008004100000041000800041082001900049100001300068245002900081250001200110260002800122300004600150365001600196700003900212230718s9999 xx 000 0 und d aeng a621.382'5bPRA aPratt T. aSatellite Communications a2nd ed. c2004bJohn Wiley & Sons a560dRef 556 E (11047), Ref 557 E (11048) cRs.b595.00 aPratt T.,Bostian C. & Allnutt J.E.