(5) Public libraries and archives services shall be authorized to reproduce a published work for their internal purposes such as restoration of damaged copies or replacement of lost copies or of a manuscript and the same shall apply to inter-library or inter-archive exchange. (6) Educational institutions shall be authorized to reproduce short works, articles or short part of a published work as well as to incorporate them in the school broadcasts or sound recordings for the non-commercial purpose of illustrating in the teaching process. (7) Private commercial research institutions shall be authorized to reproduce scientific articles, short scientific works or short parts thereof exclusively for internal purposes to satisfy the requirements of persons studying or carrying out research work. (8) It shall be permissible to reproduce a published work for the purpose of judicial proceedings to the extent justified by this purpose. (9) Broadcasting organizations shall be authorized to make with the aid of their own equipment ephemeral recordings of works for their broadcasting purposes; such recordings shall be destroyed within six months after their making but a copy of such recordings may be kept in official archives for documentary purposes. (10) The persons who legally acquire a copy of a computer program or of an electronic data bank shall be authorized to adapt them for the purposes for which these works have been acquired as well as to make back-up copies thereof exclusively for the purpose of safeguarding the acquired originals. Part IV Transfer of Ownership of Copyright Transfer of Moral and Financial Rights 15.—(1) Moral and financial rights of an author are imprescriptible. (2) The author may transfer to any person all or any of his moral and economic rights, provided that such transfer shall not be valid unless it is made in writing and signed by the owner of the rights or his agent and is registered in the Registrar’s Office; such transfer shall contain expressly and with all the necessary details the right transferred, the period and place of its exploitation, the amount of the author’s remuneration and such other conditions as may be necessary for the better execution of copyright ownership. Use of Copyright 16.—(1) The users shall be obliged to exploit the work in full conformity with the terms and conditions laid down in the contract of transfer of copyright. The author shall refrain from doing any act which is likely to hinder the use of the right transferred; nevertheless the author may, with the consent of the person to whom the right has been transferred, stop his work from been circulated or make any alteration, deletion or addition