@inproceedings{kim2019search,
  title={Search Prevention with Captcha Against Web Indexing: A Proof of Concept},
  author={Kim, Donghoon and Sample, Luke},
  booktitle={2019 IEEE International Conference on Computational Science and Engineering (CSE) and IEEE International Conference on Embedded and Ubiquitous Computing (EUC)},
  pages={219--224},
  year={2019},
  organization={IEEE}
}