Laboratory measurement of the noise behaviour of water fittings - for draft standard DIN 52218 /
Gösele, K.
Voigtsberger, C. A.
Ball, E. F.
Garston :  Building Research Station, 
1968.
[Reprinted from]: Heiz.-Lüft.-Hanstechnik, 1967, 18 (6), 230-5.