@article{10_4153_CJM_1997_020_x,
     author = {Vulakh, L. Ya.},
     title = {On {Hurwitz} {Constants} for {Fuchsian} {Groups}},
     journal = {Canadian journal of mathematics},
     pages = {406--417},
     year = {1997},
     volume = {49},
     number = {2},
     doi = {10.4153/CJM-1997-020-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1997-020-x/}
}