@misc{cryptoeprint:2016:336,
    author = {Margarita Osadchy and Julio Hernandez-Castro and Stuart Gibson and Orr Dunkelman and Daniel P ́erez-Cabo},
    title = {No Bot Expects the DeepCAPTCHA! Introducing Immutable Adversarial Examples with Applications to CAPTCHA},
    howpublished = {Cryptology ePrint Archive, Report 2016/336},
    year = {2016},
    url = {https://eprint.iacr.org/2016/336},
}