TY  - BOOK
TI  - DIN 45635-12:1978-Measurement Of Noise Emitted By Machines; Airborne Noise Measurement, Enveloping Surface Method; Electrical Switchgear And Control Gear
PY  - 1978///
CY  - Berlin
PB  - German Institute of Standarization
KW  - Noise measurement
ER  -