Sources
Following in the Footsteps of the Unwanted
In this article, the author deals with the Jews of Kippenheim and focuses in particular on the history of the Valfer family.
Michael Dobbs: Following in the Footsteps of the Unwanted, in Memory & Action 2019, available at: https://medium.com/memory-action/following-in-the-footsteps-of-the-unwanted-81e119b4afe2
