ed. by V. M. Peutz and A. de Bruijn.International Conference on Noise Control Engineering (10th : 1981 : Amsterdam)：Inter-noise 81 : Practice of noise control engineering．V.1.Nederlands Akoestisch Genootchap,1981.
ed. by V. M. Peutz and A. de Bruijn.International Conference on Noise Control Engineering (10th : 1981 : Amsterdam)：Inter-noise 81 : Practice of noise control engineering．V.2.Nederlands Akoestisch Genootchap,1981.
