translate English to French: For as long as the editions with which the publisher has been entrusted are not out of print, the author may not dispose of his work, the burden of proof in that case being on the publisher.
Tant que les éditions dont l’éditeur est chargé ne sont pas épuisées, l’auteur ne peut disposer de son œuvre, la charge de la preuve incombant à l’éditeur.