Cistercian Fathers

www.ocist.org/CFW.htm

anthology of texts and translations

Selective Cistercian bibliographie

http://users.skynet.be/am012324/studium/oneil/sommaire.htm

bibliographical references to Cistercian subjects (Sr. Kathleen O'Neill)

Gertrud die Große

bibliography Helfta

M. J. Tomann (1999)

Mechthild von Magdeburg

Mechthild von Hackeborn