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An extensive reference work on philosophy in the Middle Ages and early Renaissance is now also online.

This encyclopedia contains articles on philosophers, concepts, ideas and theories from 500 to 1500. Each article opens with an abstract and ends with bibliographic references to primary and secondary sources. There are over 400 articles, varying in length from 1500 to 5000 words.

It is available both online and in print.

Encyclopedia of Medieval Philosophy online

Encyclopedia of Medieval Philosophy in print