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.
Zhang Sen, Furong Zhao. Spatial Central Configurations with Two Twisted Regular 4-Gons. J. Applied Mathematics, 2013, 2013. [doi]