Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sumi Kazuo,"On the Loss of a Right to Invoke a Ground of Invalidity, Termination, Withdrawal from or Suspension of the Operation of a Treaty ( II )",一橋論叢,0018-2818,日本評論社,1969-06-01,61,6,770-777,https://cir.nii.ac.jp/crid/1390009224863213312,https://doi.org/10.15057/2494