The author must enable the publisher to manufacture and distribute copies of the work or to produce the work in digital form.
The author must deliver to the publisher, within the period specified in the contract, the subject matter of the edition in a form that allows the work to be manufactured or produced in digital form.
Unless otherwise agreed or technically impossible, the subject matter of the edition supplied by the author remains the property of the author. The publisher is responsible for it for the period of one year after completion of manufacture or production in digital form.