(1) The person designated as the author in the usual manner on the copies of a released work or on the original of an artistic work is regarded as the author of the work in the absence of proof to the contrary; the same applies to any designation which is known to be a pseudonym or stage name of the author.
(2) Where the author has not been named in accordance with subsection (1), it is presumed that the person designated as the editor on the copies of the work is entitled to assert the rights of the author. Where no editor has been named, it is presumed that the publisher is entitled to assert such rights.
(3) The presumption in subsection (1) applies accordingly to the holder of exclusive rights of use in the event of proceedings for temporary relief or injunctive relief. The presumption does not apply in the relationship to the author or the original holder of the related right.