“ Nevertheless, where any country outside the Union fails to protect in an adequate manner the works of authors
who are nationals of one of the countries of the Union, the latter country may restrict the protection given to the works
of authors who are, at the date of the first publication thereof, nationals of the other country and are not effectively
domiciled in one of the countries of the Union. ”

“ The provisions of this Convention cannot in any way affect the right of the Government of each country of the
Union to permit, to control, or to prohibit by legislation or regulation, the circulation, presentation, or exhibition of any
work or production in regard to which the competent authority may find it necessary to exercise that right.
Article 18
(1) This Convention shall apply to all works which at the moment of its coming into force have not yet fallen into
the public domain in the country of origin through the expiry of the term of protection. ”

“ The presentation of a dramatic, dramatico-musical or cinematographic work, the performance of a musical work,
the public recitation of a literary work, the transmission or the radio-diffusion of literary or artistic works, the exhibition
of a work of art and the construction of a work of architecture shall not constitute publication. ”