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.
Imre Bárány, Micha Sharir. The Caratheodory number for the k-core. Combinatorica, 10(2):185-194, 1990.