Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SHIGEMITSU Toru and TANAKA Chihiro and TAKESHIMA Yasutoshi and FUKUTOMI Junichiro,Internal Flow of Contra-Rotating Small-Sized Hydroturbine at Maximum Efficiency Flow Rate,Turbomachinery,03858839,Turbomachinery Society of Japan,2015,43,4,236-243,https://cir.nii.ac.jp/crid/1390001204545963776,https://doi.org/10.11458/tsj.43.4_236