@article{IVM_1993_10_a1,
     author = {I. A. Bikchantaev},
     title = {Clifford's theorem on an open {Riemann} surface},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {13--14},
     publisher = {mathdoc},
     number = {10},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1993_10_a1/}
}