Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

The CAPTCHA: Perspectives and Challenges

Part of the Smart Innovation, Systems and Technologies Book Series (volume 162)
DOI: 10.1007/978-3-030-29345-1
ISBN: 978-3-030-29344-4
Publisher: Springer International Publishing - Springer Journals
Sep 19, 2019

1 - 10 of 10 Chapters