@article{PMIHES_2009__110__1_0,
     author = {Jacob Palis and Jean-Christophe Yoccoz},
     title = {Non-uniformly hyperbolic horseshoes arising from bifurcations of {Poincar\'e} heteroclinic cycles},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {1--217},
     year = {2009},
     publisher = {Springer-Verlag},
     volume = {110},
     doi = {10.1007/s10240-009-0023-x},
     mrnumber = {2551484},
     zbl = {1181.37024},
     language = {en},
     url = {https://pmihes.centre-mersenne.org/articles/10.1007/s10240-009-0023-x/}
}