Backbuch O., Dr. (1963). Backen macht Freude. Germany: Nachdruck.
Food and Agriculture Organization of the United Nations Retrieved from http://www.fao.org/faostat/en/#data
Oulton, Randal. "Swiss Roll." CooksInfo.com. Published 11 December 2009; revised 11 December 2009. Web. Accessed 11/15/2017. <http://www.cooksinfo.com/swiss-roll>.
Calorie Counter, Diet and Exercise Journal. Retrieved from https://www.myfitnesspal.com/
Oetker.us. Retrieved November 23, 2017, from http://www.oetker.us/us-en/about-dr-oetker/about.html