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Retraction Note: Some new results on the boundary behaviors of harmonic functions with integral boundary conditions
Boundary Value Problems volume 2020, Article number: 25 (2020)
The Editors-in-Chief have retracted this article  because it significantly overlaps with an article by different authors  that was simultaneously under consideration at another journal. The article also showed evidence of authorship manipulation. In addition, the identity of the corresponding author could not be verified: Hasselt University have confirmed that Costanza T Viouonu has not been affiliated with their institution. The authors have not responded to any correspondence about this retraction.
Xie, X., Viouonu, C.T.: Bound. Value Probl. 2016, 136 (2016). https://doi.org/10.1186/s13661-016-0642-3
Huang, B., Wang, J., Zylbersztejn, M.H.: An extension of the estimation for solutions of certain Laplace equations. J. Inequal. Appl. 2016, 167 (2016). https://doi.org/10.1186/s13660-016-1109-x
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Xie, X., Viouonu, C.T. Retraction Note: Some new results on the boundary behaviors of harmonic functions with integral boundary conditions. Bound Value Probl 2020, 25 (2020). https://doi.org/10.1186/s13661-020-01337-0