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.
Andrea Sorbi. On some filters and ideals of the Medvedev lattice. Arch. Math. Log., 30(1):29-48, 1990. [doi]
Abstract is missing.