Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Hyoungshick Kim, Jun Ho Huh. PIN selection policies: Are they really effective?. Computers & Security, 31(4):484-496, 2012. [doi]
Abstract is missing.