@article{IM_1990__100_2_143777,
     author = {Steven P. Kerckhoff and W.P. Thurston},
     title = {Non-continuity of the action of the modular group at {Ber's} boundary of {Teichmuller} space.},
     journal = {Inventiones mathematicae},
     pages = {25--48},
     publisher = {mathdoc},
     volume = {100},
     number = {2},
     year = {1990},
     zbl = {0698.32014},
     url = {http://geodesic.mathdoc.fr/item/IM_1990__100_2_143777/}
}