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 -小藍牛66- ♀ (0 bytes) () 12/16/2008 postreply 15:58:51