(1) The protection of this Convention shall apply to:

• (a) authors who are nationals of one of the countries of the Union, for their works, whether published or not;
• (b) authors who are not nationals of one of the countries of the Union, for their works first published in one of those countries, or simultaneously in a country outside the Union and in a country of the Union.

(2) Authors who are not nationals of one of the countries of the Union but who have their habitual residence in one of them shall, for the purposes of this Convention, be assimilated to nationals of that country.

(3) The expression "published works" means works published with the consent of their authors, whatever may be the means of manufacture of the copies, provided that the availability of such copies has been such as to satisfy the reasonable requirements of the public, having regard to the nature of the work. The performance of a dramatic, dramatico-musical, cinematographic or musical work, the public recitation of a literary work, the communication by wire or the broadcasting of literary or artistic works, the exhibition of a work of art and the construction of a work of architecture shall not constitute publication.

(4) A work shall be considered as having been published simultaneously in several countries if it has been published in two or more countries within thirty days of its first publication.