[1]
L. POLAK and Z. KOTULSKI, “Sending hidden data through WWW pages: detection and prevention Engineering”, Eng. Trans., vol. 58, no. 1-2, pp. 75–89, Sep. 2014, Accessed: Jun. 11, 2025. [Online]. Available: https://et3.ippt.pan.pl/index.php/et/article/view/169