Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kunimatsu Sunao,Characteristics of Sources of Vibration from Various Activities,The Journal of the INCE of Japan,03868761,The Institutew of Noise Control Engineering of Japan,2000,24,6,397-407,https://cir.nii.ac.jp/crid/1390282679744532736,https://doi.org/10.11372/souonseigyo1977.24.397