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Open system

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This is an old revision of this page, as edited by Erkan Yilmaz (talk | contribs) at 02:14, 22 October 2009 (Undid revision 320891684 by 68.60.171.151 (talk)). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Open system may refer to:

See also