@article{PMIHES_1998__S88__165_0,
     author = {Alexander M. Polyakov},
     title = {The wall of the cave},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {165--177},
     year = {1998},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {S88},
     doi = {10.5802/pmihes.10},
     mrnumber = {1667908},
     zbl = {0997.81103},
     language = {en},
     url = {https://pmihes.centre-mersenne.org/articles/10.5802/pmihes.10/}
}