Bowyer, E.P. Krylov, Victor V. Experimental investigations into the acoustic black hole effect and its applications for reduction of flexural vibrations and structure-borne sound Experimental investigations into the acoustic black hole effect and its applications for reduction of flexural vibrations and structure-borne sound untagged;Engineering not elsewhere classified 2013-12-03
    https://repository.lboro.ac.uk/articles/conference_contribution/Experimental_investigations_into_the_acoustic_black_hole_effect_and_its_applications_for_reduction_of_flexural_vibrations_and_structure-borne_sound/9221810