...Works are subject to the terms of this License. You may copy and distribute a Derivative Work of the Document under the conditions of Section 2 above, provided that You release the Derivative Work under th e exact, verbatim terms of this License (i.e., the Derivative Work is licensed as a "Document" under the terms of this License). In addition, Derivative Works of Documents must meet the following requirements: (a) All copyright and license notices in the original Document must be preserved....
--Apple Common Documentation License (Apple CDL), Version 1.0. (Paragraph 12.)