TY  - BOOK
AU  - Ahnert,Wolfgang
AU  - Steffen,Frank
TI  - Sound reinforcement engineering: fundamentals and practice
SN  - 0415238706
PY  - 1999///
CY  - London
PB  - New York, E & FN Spon
KW  - Acoustical engineering
KW  - Loudspeakers
KW  - Public address systems
N1  - Includes bibliographical references and index
ER  -