Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kamada T. and Morihama K. and Yamada K. and Watanabe T. and Iwano S. and Uchida S. and Takanabe M.,Revision of Japanese Society for Non-Destructive Inspection Standard NDIS 2426-2: “Non-destructive testing of concrete - elastic wave method. Part 2: Impact elastic wave method”,Concrete Journal,03871061,Japan Concrete Institute,2015,53,12,1031-1037,https://cir.nii.ac.jp/crid/1390001204543237248,https://doi.org/10.3151/coj.53.12_1031