(1) If several performers perform a work jointly and their respective contributions cannot be separately exploited, they have the joint right of exploitation. None of the participating performers may unreasonably refuse consent to exploitation of the work. Section 8 (2) sentence 3 and (3) and (4) applies accordingly.
(2) For the purpose of asserting rights and claims under sections 77, 78 and 79 (3), section 74 (2) sentence 2 and 3 applies accordingly.