00730nam a2200205Ia 450000500170000000800410001702000150005804000180007304100080009108200210009910000260012024501180014625000120026426000660027630000300034265000430037265000380041565000510045370000200050420230707111536.0210716s2001    xx            000 0 und d  a0070402353  cAIMIT LIBRARY  aeng  a004.65 21bLEOA  aLeon Garcia, Alberto.  aCommunication networks: bfundamental concepts and key architectures /cBy Alberto Leon Garcia and Indra Widjaja.  a1st ed.  aNew Delhi :bTata McGraw Hill Publishing Company Ltd ,c2001.  axxiii,867p. ;bPBc23 cm.  aApplications and layered architectures  aDigital transmission fundamentals  aTransmission systems and the telephone network  aWidjaja, Indra.