http://www.wittenberg.de/e/seiten/personen/gerhardt.html Lutherstadt Wittenberg, Paul Gerhardt Biographical article. http://www.hillsdale.edu/dept/Phil%26Rel/Biography/06/07a.html Paul Gerhardt, Hymnwriter Biography; list of hymns, some with source information. http://www.iclnet.org/pub/resources/text/wittenberg/wittenberg-gerhardt.html Project Wittenberg: Paul Gerhardt Etexts of 10 hymns, in German and in English translation.