Bilgin, M. and Backhaus, J. (2020) “Development of an irreversible hydrochromic ink for smart packaging: DOI 10.14622/JPMTR-2004”, Journal of Print and Media Technology Research, 9(3), pp. 137–143. Available at: https://jpmtr.org/index.php/journal/article/view/6 (Accessed: 20 April 2024).