Renz, Horst (Ed.). Gertrud von le Fort - Friedrich Gogarten. Briefwechsel. Berlin, Boston: De Gruyter, 2014. Web. Retrieved 20 May. 2013, from http://www.degruyter.com/view/product/129201

Renz, H. (Ed.) (2014). Gertrud von le Fort - Friedrich Gogarten. Briefwechsel. Berlin, Boston: De Gruyter. Retrieved 20 May. 2013, from http://www.degruyter.com/view/product/129201

Renz, Horst (Ed.). 2014. Gertrud von le Fort - Friedrich Gogarten. Briefwechsel. Berlin, Boston: De Gruyter. Retrieved 20 May. 2013, from http://www.degruyter.com/view/product/129201