(1) The author’s economic rights to a work that is anonymous or bears the pseudonym which is not widely known shall continue to subsist for a period of 70 years after it has been made public; provided, within such period, if there are reasonable grounds for recognizing that 70 years have lapsed after the death of the author, such economic right shall be deemed to be extinguished at the time when it deems that 70 years have lapsed after the death of the author. <Amended on Jun. 30, 2011>
(2) The provisions of paragraph (1) shall not apply to any of the following cases:
1. Where the real name or the well-known pseudonym of an author is revealed during the period referred to in paragraph (1);
2. Where the real name of an author is registered under Article 53(1) during the period referred to in paragraph (1).