TY  - GEN
AU  - Helvoort,Huub van
TI  - Next generation SDH/SONET: evolution or revolution?: evolution or revolution?
SN  - 0470091207
U1  - 621.382 
PY  - 2005///
CY  - England
PB  - John Wiley & Sons Ltd
KW  - Synchronous digital hierarchy (Data transmission)
KW  - SONET (Data transmission)
ER  -