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.
Roland Coghetto. Klein-Beltrami model. Part III. Formalized Mathematics, 28(1):1-7, 2020. [doi]
Abstract is missing.