Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kawai Keiji,A Legal Study of the Posting System : Does the NPB Standard Player Contract have Binding Power to Restrict a Japanese Player's Transfer to Overseas Leagues?,同志社法學,03877612,The Doshisha Law Association,2009-02-28,60,7,1081-1120,https://cir.nii.ac.jp/crid/1390290699889954688,https://doi.org/10.14988/pa.2017.0000011663