竹島問題と国際司法裁判所

「国際法上、領有権を巡る紛争では「発見」は未成熟権原 (inchoate title) とされ、領有権（権原）とするには合理的期間内に「実効支配」により補完されなければならないとされている」
「The Island of Palmas Case The Hague, 4 April 1928(パルマス島の判例） "If on the other hand the view is adopted that discovery does not create a definitive title of sovereignty, but only an “inchoate” title, such a title exists, it is true, without external manifestation. However, according to the view that has prevailed at any rate since the 19th century, an inchoate title of discovery must be completed within a reasonable period by the effective occupation of the region claimed to be discovered."」ともに［ウィキペディア日本語「竹島（島根県）」］