Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
TSUJIHARA Kentaro and IURA Yoshihiko,A RESEARCH ON CHANGES OF SPORTS SYSTEM IN BULGARIA; THROUGH THE SITUATION OF STATE AMATEURS IN JUDO,Research Journal of Budo,0287-9700,Japanese Academy of Budo,1993,25,3,41-55,https://cir.nii.ac.jp/crid/1390282680425819776,https://doi.org/10.11214/budo1968.25.3_41