49th Winter School on Wave and Quantum Acoustics, 24–27.02.2020, Hotel Meta, Szczyrk
48th Winter School on Environmental Acoustics and Vibroacoustcs, 24–28.02.2020, Hotel Meta, Szczyrk
24th Conference on Acoustic and Biomedical Engineering, 31.03–3.04.2020, Hotel Hyrny, Zakopane