Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Tsuruta Takayuki and Kuwagi Kenya and Ozoe Hiroyuki,Spiral Vortex Flow around a Bubble Plume in a Vertical Cylinder,九州大学機能物質科学研究所報告,09143793,Institute of Advanced Material Study Kyushu University,2000-07-01,14,1,31-36,https://cir.nii.ac.jp/crid/1390853649765673216,https://doi.org/10.15017/7918