@article{10_1017_fms_2022_77,
     author = {Fabrizio Barroero and Laura Capuano and Umberto Zannier},
     title = {Betti maps, {Pell} equations in polynomials and {almost-Belyi} maps},
     journal = {Forum of Mathematics, Sigma},
     publisher = {mathdoc},
     volume = {10},
     year = {2022},
     doi = {10.1017/fms.2022.77},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/fms.2022.77/}
}