Permanence Policy. Internet addresses (URLs) of this archive and its objects will not be changed in the future, so they can be used reliably in links. If an object is ever deleted, its address will thenceforth lead to an explanation of what happened. On the other hand, collections can be redefined, reconfigured, or removed at any time; their URLs are not permanent unless specifically so indicated.
Access Policy. As far as is known, material on public pages in this archive is not subject to copyright restrictions unless so indicated. It is available to all, without charge, for any noncommercial purpose.
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