 These rights cannot be waived or transferred.After the author’s death, the rights under (1), (2) and (4) above are exercised by heirs, for an unlimited period of time.In addition, the author of a graphic, plastic art or photographic work has a resale right, which entitles him or her to receive a percentage of the price when the work makes the object of a reselling operation in which an art dealer participates as seller, buyer or agent.