A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Illustrated description of band pass filters covering range of 80-8000 cps; apparatus designed for acoustic measurements in buildings.
Illustrated description of band pass filters covering range of 80-8000 cps; apparatus designed for acoustic measurements in buildings.
Universal acoustic filter
Et universalfilter
Nielsen, A.K. (author)
Ingenioren ; 59
1950
4 pages
Article (Journal)
Danish
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