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See also the page on Flagging, which addresses procedures for handling fragile paper.
Sticky notes can be removed from paper documents and recycled, if they have no intrinsic value. If a sticky note provides contextual information or in any other way is worth keeping with the document, please leave the sticky in place and enclose it and the paper it is stuck to in an acid-free sling.
Specific formats often have their own preservation issues.
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