(1)
GIOUVANAKIS, M.; SEVASTIADIS, C.; PAPANIKOLAOU, G. Low-Frequency Noise Attenuation in a Closed Space Using Adaptive Directivity Control Sources of a Quadrupole Type. Arch. Acoust. 2019, 44 (1), 71–78. https://doi.org/10.24425/aoa.2019.126353.