00278nam a2200109Ia 4500100003000000654001800030245005100048260002900099082002000128300000800148546001200156  aViterbi/A.Jand omura/J.K   aCommunication  aPrinciples of digital communication and coding  bMcGraw HillaTokyoc1979  a621.38bVIT/OMU  a560  aENGLISH