@article{GT_2016_20_2_a9,
     author = {Yang, Tian},
     title = {On type-preserving representations of the four-punctured sphere group},
     journal = {Geometry & topology},
     pages = {1213--1255},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2016},
     doi = {10.2140/gt.2016.20.1213},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2016.20.1213/}
}