@article{PMIHES_2007__106__139_0,
     author = {Labourie, Fran\c{c}ois},
     title = {Cross ratios, surface groups, $PSL(n,\mathbf {R})$ and diffeomorphisms of the circle},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {139--213},
     publisher = {Springer},
     volume = {106},
     year = {2007},
     doi = {10.1007/s10240-007-0009-5},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1007/s10240-007-0009-5/}
}