The timing of the transfer of rights process is inherently problematic for several reasons. First, publication means that copyright transfer rights, which are subject to publication conditions, are rarely freely transferred or acquired without printing.  Second, it becomes very difficult for an author not to sign a copyright transfer contract because of the association of publications with career advancement (print or loss/print publication) and the time lost should be restarted in the verification and publication process. There are power dynamics in the game that do not benefit authors and often endanger certain academic freedoms.  This may partly explain why authors in the field of scientific research, unlike all other sectors where original creators receive fees or royalties, generally receive no payment from publishers. It also explains why many authors seem to continue to sign their rights when they do not agree with the reasons behind them.  This agreement constitutes the whole agreement between the parties in this area. Any amendments or additions to the agreement must be made in writing and signed by both parties. Copyright transfer agreements also require authors to confirm that they do hold copyright for all documents relating to a given publication and that, in many agreements, the purpose for which copyright must be transferred has not been published in advance and should not be published elsewhere in order to limit the frequency of dual publications and plagiarism.
  4 The remaining part of the contract is protected in the event of a transfer. He may decide to completely lighten the burden on the ceding. It will only accept such a complete and definitive transmission if it is sure that the agent is as reliable and solvent as the assignee. The remaining party may also decide to retain the assignee as a subsidiary if the purchaser does not act. The remaining part may also choose to make the seller jointly liable with the purchaser. In the latter case, the other party may assert its rights either against the ceding party or against the purchaser.