@article{10_1090_S0894_0347_08_00609_7,
     author = {Hubbard, John and Schleicher, Dierk and Shishikura, Mitsuhiro},
     title = {Exponential {Thurston} maps and limits of quadratic differentials},
     journal = {Journal of the American Mathematical Society},
     pages = {77--117},
     year = {2009},
     volume = {22},
     number = {1},
     doi = {10.1090/S0894-0347-08-00609-7},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-08-00609-7/}
}