TY - BOOK AU - Helvoort,Huub Van TI - SDH/SONET EXPLAINED IN FUNCTIONAL MODELS SN - 0470091231 U1 - 621.38216 PY - 2005/// CY - PB - John Wiley And Sons Ltd., Chichester KW - Synchronous Digital Hierarch (Data Transmission) KW - Sonet (Data Transmission) ER -