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.
Tim Button. Level Theory, Part 1: Axiomatizing the Bare Idea of a Cumulative Hierarchy of Sets. Bulletin of Symbolic Logic, 27(4):436-460, 2021. [doi]
Abstract is missing.