Retraction Retraction dated 2015-07-04

Click to view Retraction: https://doi.org/10.1186/s13662-015-0446-2

Retraction Retraction dated 2014-09-09

Click to view Retraction: https://doi.org/10.1186/1687-1847-2014-235

RETRACTED ARTICLE: Landesman-Lazer type condition for second-order differential equations at resonance with impulsive effects

Crossref DOI link: https://doi.org/10.1186/1687-1847-2014-235

Published Online: 2014-09-09

Published Print: 2014-12

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