SpringerOpen Newsletter

Receive periodic news and updates relating to SpringerOpen.

Open Access Open Badges Research

Existence of positive solutions to periodic boundary value problems with sign-changing Green's function

Shengren Zhong and Yukun An*

Boundary Value Problems 2011, 2011:8  doi:10.1186/1687-2770-2011-8

Article Metrics

Total accesses

Article metric FAQ


  • Last 30 days: 26 accesses
  • Last 365 days: 430 accesses
  • All time: 2197 accesses

These numbers are accesses on SpringerOpen websites only, and an underestimate of total usage. More information

Open Badges