@article{SM_1988_60_1_a8,
     author = {P. G. Zograf and L. A. Takhtadzhyan},
     title = {On~Liouville's equation, accessory parameters, and the geometry of {Teichm\"uller} space for {Riemann} surfaces of genus~0},
     journal = {Sbornik. Mathematics},
     pages = {143--161},
     publisher = {mathdoc},
     volume = {60},
     number = {1},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1988_60_1_a8/}
}