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Draft International Convention on the Condition and Protection of Civilians of enemy nationality who are on territory belonging to or occupied by a belligerent. Tokyo, 1934.
Chapter IV#Section III: Final provisions - Art. 33.
Article 33.- The Swiss Federal Council shall deposit a certified copy of the present Convention in the archives of the League of Nations. The Swiss Federal Council shall also inform the League of Nations of the ratifications, accessions and denunciations that have been notified to it.