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 The author of a work copyrighted under this Act has the right to present himself as the author of the said work and has the right to prevent the transferee of his copyright or any other person from misrepresenting, reducing, adapting, or doing any other thing to such work to the extent that causes injury to the good name or credit of the author, and once the author has died, the heir of the author has the right to institute [at any time] throughout the term of copyright protection an action for enforcing the described right, save where a different agreement has been adopted in writing.

Subject to section 21 and section 22, the copyright under this Act shall exist throughout the lifetime of the author and shall continue to exist for a period of fifty more years reckoned from the death of the author.

In the event of joint authorship, the copyright in the work shall exist throughout the lifetime of the joint authors and shall continue to exist for a period of fifty more years reckoned from the death of the last [surviving] joint author.

If the author or all of the joint authors die prior to the publication of the work, the said copyright shall last for a term of fifty years reckoned from the taking place of the first publication.

In the event that the author is a juristic person, the copyright shall last for a term of fifty years reckoned from the creation of the work by the author, but if the work is published during the said period of time, the copyright shall last for a term of fifty years reckoned from the taking place of the first publication.

As regards a copyrighted work under this Act which has been created by a pseudonymous or anonymous author, the copyright shall last for a term of fifty years reckoned from the creation of such work, but if the work is published during the said period of time, the copyright shall last for a term of fifty years reckoned from the taking place of the first publication.

In the event that the author is known, section 19 shall apply mutatis mutandis.

The copyright in a work of photography, audiovisual work, film, sound recording, or broadcast shall last for a term of fifty years reckoned from the creation of such work, but if the work is published during the said period of time, the copyright shall last for a term of fifty years reckoned from the taking place of the first publication.

The copyright in a work of applied art shall last for a term of fifty years reckoned from the creation of such work, but if the work is published during the said period of time, the copyright shall last for a term of fifty years reckoned from the taking place of the first publication.