Integral estimates of conformal derivatives and spectral properties of the Neumann-Laplacian

@article{Goldshtein2017IntegralEO,
  title={Integral estimates of conformal derivatives and spectral properties of the Neumann-Laplacian},
  author={Vladimir Gol'dshtein and V. A. Pchelintsev and Alexander Ukhlov},
  journal={Journal of Mathematical Analysis and Applications},
  year={2017}
}

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