@article{DAN_1976_231_4_a6,
     author = {S. L. Krushkal'},
     title = {On the supports of {Beltrami} differentials for {Kleinian} groups},
     journal = {Doklady Akademii Nauk},
     pages = {799--801},
     publisher = {mathdoc},
     volume = {231},
     number = {4},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_231_4_a6/}
}