Weng, H., Zhao, B., Ji, S., Chen, J., Wang, T., He, Q., & Beyah, R. Towards Understanding the Security of Modern Image Captchas and Underground Captcha-Solving Services. Tsinghua University Press.
Chicago Style (17th ed.) CitationWeng, Haiqin, Binbin Zhao, Shouling Ji, Jianhai Chen, Ting Wang, Qinming He, and Raheem Beyah. Towards Understanding the Security of Modern Image Captchas and Underground Captcha-Solving Services. Tsinghua University Press.
MLA (9th ed.) CitationWeng, Haiqin, et al. Towards Understanding the Security of Modern Image Captchas and Underground Captcha-Solving Services. Tsinghua University Press.
Warning: These citations may not always be 100% accurate.