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.
Calin Popescu, Roy Barbara, Omran Kouba. A Sum Related to Quadratic Residues: 10852. The American Mathematical Monthly, 109(2):208, 2002. [doi]
Abstract is missing.