Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yasui Kengo,Rules of engagement under international law,同志社法學,03877612,The Doshisha Law Association,2020-03-31,71,7,2189-2222,https://cir.nii.ac.jp/crid/1390009224916408832,https://doi.org/10.14988/pa.2020.0000000199