Haichang Gao, Wei Wang, Ye Fan, Jiao Qi, Xiyang Liu. The Robustness of "Connecting Characters Together" CAPTCHAs. J. Inf. Sci. Eng., 30(2):347-369, 2014. [doi]
@article{GaoWFQL14,
title = {The Robustness of "Connecting Characters Together" CAPTCHAs},
author = {Haichang Gao and Wei Wang and Ye Fan and Jiao Qi and Xiyang Liu},
year = {2014},
url = {http://www.iis.sinica.edu.tw/page/jise/2014/201403_05.html},
researchr = {https://researchr.org/publication/GaoWFQL14},
cites = {0},
citedby = {0},
journal = {J. Inf. Sci. Eng.},
volume = {30},
number = {2},
pages = {347-369},
}