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Dörr, O., & Schmalenbach, K. (2011). Vienna Convention on the Law of Treaties: a commentary. (p. 497). Springer Science & Business Media.
... shows that it was the intention of SR Waldock to establish a general rule stating that a treaty applies to all territories over which a State exercises sovereignty, including non-metropolitan territores, ie colonies that fall within the scope of sovereignty of the mother country. ...