TY  - BOOK
AU  - Huub Van Helvoort
TI  - Next generation SDH/SONET : evolution or revolution?
SN  - 0-470-09120-7
U1  - 001.64404 Hel 
PY  - 2005///
CY  - John Wiley & Sons Ltd, USA
KW  - Commerce and Management
ER  -