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.
Shengqiang Liu, Lansun Chen. Necessary-sufficient conditions for permanence and extinction in lotka-volterra system with distributed delays. Appl. Math. Lett., 16(6):911-917, 2003. [doi]
Abstract is missing.