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.
Henryk Kotlarski, Konrad Zdanowski. On a question of Andreas Weiermann. Math. Log. Q., 55(2):201-211, 2009. [doi]