Morić Kolarić, Branka, Ivana Žiljak Stanimirović, and Ivana Bak. “Security Offset Printing With Twin Colors by Means of CMYF Separation”. Journal of Print and Media Technology Research 4, no. 2 (October 10, 2023): 111–118. Accessed November 21, 2024. https://jpmtr.org/index.php/journal/article/view/136.