Abstract
No abstract.References
[1] B. Bukowski, Sound and building, Institute of Building Research, Warsaw 1947.
[2] Z. Engel, Environmental protection against vibrations and noise, Scientific Publishers, Warsaw 1993.
[3] J. Kacprowski, Outline of electroacoustics, Transports Publisher, Warsaw 1956.
[4] M. Kwiek, Laboratory acoustics, Scientific Publisher, Poznan 1968.
[2] Z. Engel, Environmental protection against vibrations and noise, Scientific Publishers, Warsaw 1993.
[3] J. Kacprowski, Outline of electroacoustics, Transports Publisher, Warsaw 1956.
[4] M. Kwiek, Laboratory acoustics, Scientific Publisher, Poznan 1968.