TY  - BOOK
AU  - Gumhalter,Hans
TI  - Power supply systems in communications engineering
SN  - 047190290X
PY  - 1984///
CY  - (Munich)
PB  - Siemens Aktiengesellschaft
KW  - Telecommunication systems
KW  - Power supply
N1  - Includes index; Contents : pt. 1. Principles
ER  -