Hae-Yeoun Lee and  In-Koo Kang and  Heung-Kyu Lee,  Hybrid Modulation Technique for Fingerprinting .   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2007, vol. 2(2). 365 - 368
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10526.