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.
Artur Kornilowicz, Dariusz Surowik. Elementary Number Theory Problems. Part II. Formalized Mathematics, 29(1):63-68, 2021. [doi]