COPYRIGHT - MARCH 1992 CHAPTER 111 Content and Transfer of Rights Economic rights Article' 17. (I) The author of a work protected under this Law shall have the exclusive right to per­ form or authorize others to perform the following acts: (a) to publish, reproduce or communicate his work to the public by any means, including performance, publication by graphical or mechanical processes, cinematographic fixa­ tions and projection and sound or visual broadcasting; (b) to translate, adapt or arrange his work or transform it in any other manner. (2) It shall be for the author to lay down the conditions of the authorization he affords to others to use his works, particularly the amount of the cor­ responding remuneration, notwithstanding the rules and schedules of fees established by regulation by the State Secretariat for Culture or by the body referred to in Article 39 of this Law. LAWS AND TREATIES Transfer of rights Article 19. (1) The author may authorize the use of all or a part of his work, by any means already known or to be invented, whereby the corre­ sponding authorization must be given in writing and must set out the applicable conditions and the authorized mode of use. (2) The author may transfer all or a part of the economic rights afforded to him by this Law by means of a written document laying down the con­ ditions and limits of transfer. (3) Where the authorization and the transfer re­ ferred to in this Article concern a given mode of use of the work, they shall not prevent the author from authorizing other modes of use or from transferring the relevant rights to others, and their beneficiaries may not transfer them to others without the explicit consent of the author. (4) Complete transfer of the economic elements of copyright shall be subject to authorization by the State Secretariat for Culture or the body referred to in Article 39 of this Law. CHAPTER IV Moral rights Article 18. The author shall have the right: (a) to claim authorship of his work and to re­ quire that his name be mentioned each time the work is communicated to the public (ex­ cept where it is included, incidentally or accidentally, in reports on current events transmitted by broadcasting); (b) to defend the integrity of his work by oppos­ ing any distortion, mutilation or modifica­ tion to his work and, generally, any act that denatures his work and is liable to prejudice his honor and reputation; (c) to keep his work unpublished, to amend it before or after communication to the public, to withdraw it from circulation or to sus­ pend any form of use previously authorized, subject, in the latter case, to compensating others for any prejudice they suffer as a result of the suspension or withdrawal from circulation. (2) These rights shall be inalienable and impres­ criptible; they shall subsist even in the event of complete transfer of the rights to others and after the death of the author. ANGOLA - Text 1-01, page 4 Duration of Rights General rule Article 20. (I) The author's economic rights shall last for his lifetime and, for the benefit of his heirs under the applicable legislation, 50 years after his death or 25 years, in the case of photographic works or works of applied art, as from January 1 of the year following that of his death. (2) In the case of a work of joint authorship, the periods laid down in the above paragraph shall begin with the death of the last surviving joint author. Works offolklore Article 21. The protection of works of folklore shall not be limited in time. Moral rights Article 22. After the death of the author, the moral rights shall be exercised by his heirs, or if the latter refrain from exercising them without good reason, by the State Secretariat for Culture. AO