@article{KUKZ_1976_13_13_a5,
     author = {E. P. Aksent'eva},
     title = {On the question of the existence of univalent halves of symmetric {Riemann} surfaces},
     journal = {Trudy seminara po kraevym zada\v{c}am},
     pages = {49--55},
     publisher = {mathdoc},
     volume = {13},
     number = {13},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKZ_1976_13_13_a5/}
}