– Wikipedia contributors. (2021, July 14). Rennsteig Werkzeuge GmbH. In Wikipedia, The Free Encyclopedia. Retrieved 08:23, August 10, 2021, from https://en.wikipedia.org/w/index.php?title=Rennsteig_Werkzeuge_GmbH&oldid=1033578427
– Rennsteig Tools Inc. (n.d.). About us. Retrieved August 10, 2021, from https://www.rennsteig.us/pages/about-us
