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Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/Theoria_(philosophy_journal)
Wikipedia: sv.wikipedia.or ... https://sv.wikipedia.org/wiki/Theoria
Wikipedia: tr.wikipedia.or ... https://tr.wikipedia.org/wiki/Theoria
SUDOC: www.sudoc.fr/00 ... http://www.sudoc.fr/002936623
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