Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) USUI Kensuke,Vertically downward two-phase flow. (II). Flow regime transition criteria.,Journal of Nuclear Science and Technology,0022-3131,Atomic Energy Society of Japan,1989,26,11,1013-1022,https://cir.nii.ac.jp/crid/1390282679073260800,https://doi.org/10.3327/jnst.26.1013