The Berne Universal Copyright Convention 
1. (a) Any Contracting State to which Article Vbis (1) applies may substitute for the period of seven years provided for in Article V(2) a period of three years or any longer period prescribed by its legislation. However, in the case of a translation into a language not in general use in one or more developed countries that are party to this Convention or only the 1952 Convention, the period shall be one year instead of three.
(b) A Contracting State to which Article Vbis (1) applies may, with the unanimous agreement of the developed countries party to this Convention or only the 1952 Convention and in which the same language is in general use, substitute, in the case of translation into that language, for the period of three years provided for in sub-paragraph (a) another period as dete