@article{AA_1993_5_3_a6,
     author = {S. R. Nasyrov},
     title = {Branched covers of {Riemann} surfaces with a~given projection of the boundary},
     journal = {Algebra i analiz},
     pages = {212--237},
     publisher = {mathdoc},
     volume = {5},
     number = {3},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1993_5_3_a6/}
}