Christian Singers of Germany: Paul Gerhardt, Hymnuts: Paul Gerhardt, Lutherstadt Wittenberg, Paul Gerhardt, Paul Gerhardt as a Hymn Writer and his Influence o, Paul Gerhardt, Hymnwriter, Project Wittenberg: Paul Gerhardt

Credenda: Claude Goudimel, Werner Icking Music Archive: Claude Goudimel

Cardiff University: AnnGriffiths, National Library of Wales: Ann Griffiths