Wüst, Philipp, Thomas S. Dohmen, Alexander Waal, Dieter Spiehl, Edgar Dörsam, Andreas Blaeser, and Johannes Kabisch. “Use of Bacillus Subtilis Spores in Printing and Additive Manufacturing As a Robust, DNA‑based anti‑counterfeiting and Identification Feature: Stresses, Processing and Evaluation”. Journal of Print and Media Technology Research 11, no. 3 (November 13, 2022): 171–181. Accessed March 24, 2023. https://jpmtr.org/index.php/journal/article/view/49.