Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KAMINISHI Yoshiaki and OHTA Sigoh and ISHIHARA Toyohiko,Radiation Pattern of Acoustical Array Antenna on Concave Boundary : Ultrasonic Propagation and Field,Japanese journal of applied physics. Supplement,00214922,The Japan Society of Applied Physics,1990-12-28,29,1,86-88,https://cir.nii.ac.jp/crid/1570572702487734272,