"Elektro-akoestiek." . . "Luidsprekers." . . "Microfoons." . . "SOUND RECORDING" . . "Trillingen." . . . . . . . . . . . . "Elements of Acoustical Engineering" . "Elements of Acoustical Engineering"@en . . . . . . . . . "Elements of acoustic engineering" . . . . . . . . . . . . . . . "Elements of acoustical engineering" . "Elements of acoustical engineering"@en . . . . . . . . . . . . . . "Acoustical engineering"@en . . . . . . . . . . . . . "Ruimte-akoestiek." . . "Geluidsgolven." . . "Acústica arquitectònica." . . "mechanics & acoustics" . .