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  journal = {Soviet Physics JETP},
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  year = {1971},
  note = {English translation; Russian original in Zh. Eksp. Teor. Fiz. 59 (1970), 907--920},
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}

@article{KosterlitzThouless1973,
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@article{FrohlichSpencer1981,
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}

@article{FrohlichSpencerCoulomb1981,
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@article{RSD2017,
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@article{BPR2024II,
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@misc{LammersDichotomy,
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  note = {Version of 25 July 2026; first posted in 2022},
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@article{NewmanWu2019,
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@article{GarbanSepulveda2024,
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@article{NewmanWu2018,
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@article{JohnNirenberg1961,
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@article{Park2025Multipoint,
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@misc{AizenmanHarelPeledShapiro2022,
  author = {Aizenman, Michael and Harel, Matan and Peled, Ron and Shapiro, Jacob},
  title = {Depinning in integer-restricted {Gaussian} fields and {BKT} phases of two-component spin models},
  year = {2022},
  howpublished = {arXiv:2110.09498v3},
  note = {Version of 27 May 2022; first posted in 2021},
  url = {https://arxiv.org/abs/2110.09498v3}
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@article{LammersOtt2024,
  author = {Lammers, Piet and Ott, S{\'e}bastien},
  title = {Delocalisation and absolute-value-{FKG} in the solid-on-solid model},
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@misc{KharashPeled2017,
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  title = {The {Fr{\"o}hlich--Spencer} Proof of the {Berezinskii--Kosterlitz--Thouless} Transition},
  year = {2017},
  howpublished = {arXiv:1711.04720},
  url = {https://arxiv.org/abs/1711.04720}
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@article{DimockHurd2000,
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  title = {{Sine--Gordon} Revisited},
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@article{Falco2012,
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  title = {{Kosterlitz--Thouless} Transition Line for the Two Dimensional {Coulomb} Gas},
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@misc{Falco2013,
  author = {Falco, Pierluigi},
  title = {Critical exponents of the two dimensional {Coulomb} gas at the {Berezinskii--Kosterlitz--Thouless} transition},
  year = {2013},
  howpublished = {arXiv:1311.2237v2},
  note = {Version of 25 November 2013},
  url = {https://arxiv.org/abs/1311.2237v2}
}

@misc{BiskupHuang2025,
  author = {Biskup, Marek and Huang, Haiyu},
  title = {Phase transition and critical behavior in hierarchical integer-valued {Gaussian} and {Coulomb} gas models},
  year = {2025},
  howpublished = {arXiv:2412.08964v2},
  note = {Version of 14 May 2025; first posted in 2024},
  url = {https://arxiv.org/abs/2412.08964v2}
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@misc{DuminilCopinKozlowskiLammersManolescu2026,
  author = {Duminil-Copin, Hugo and Kozlowski, Karol Kajetan and Lammers, Piet and Manolescu, Ioan},
  title = {{Gaussian} free field convergence of the six-vertex model with {$-1\leq\Delta\leq-\frac12$}},
  year = {2026},
  howpublished = {arXiv:2603.06268v1},
  note = {Version of 6 March 2026},
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@article{BrydgesGuadagniMitter2004,
  author = {Brydges, David C. and Guadagni, G. and Mitter, P. K.},
  title = {Finite range decomposition of {Gaussian} processes},
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  eprint = {math-ph/0303013}, archivePrefix = {arXiv}
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@article{Bauerschmidt2013,
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@article{BrydgesYau1990,
  author = {Brydges, David C. and Yau, Horng-Tzer},
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@incollection{Brydges2009,
  author = {Brydges, David C.},
  title = {Lectures on the renormalisation group},
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@article{Kosterlitz1974,
  author = {Kosterlitz, J. M.},
  title = {The critical properties of the two-dimensional {XY} model},
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@article{NelsonKosterlitz1977,
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@article{Villain1975,
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@article{JoseKadanoffKirkpatrickNelson1977,
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@article{JunnilaSaksmanWebb2020,
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@article{LacoinRhodesVargas2015,
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@article{Lupu2016,
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@article{LupuWerner2018,
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@article{DunlopNewman1975,
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@article{LiebSokal1981,
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@article{FKG1971,
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