Copyright only protects the expression, not the idea. so if you write your own book based on the same idea, then it is not a derivative work. but if you say it is "改寫“,then more than likely it will be a derivative work, because otherwise it would not be "改寫”,it would just be a new paper based on the old "public" idea.
one more thing
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caliber: 非常感謝
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12/16/2008 postreply
15:58:51