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Sep 28, 2016 at 16:28 vote accept Mikhail Borovoi
Sep 28, 2016 at 9:09 answer added Friedrich Knop timeline score: 3
Sep 28, 2016 at 7:42 history edited Mikhail Borovoi CC BY-SA 3.0
added 32 characters in body
Sep 28, 2016 at 5:12 history asked Mikhail Borovoi CC BY-SA 3.0