@article{ZNSL_1993_206_a11,
     author = {N. A. Shirokov},
     title = {Approximation on the limit continuous of a~degenerate {Kleinian} group},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {137--150},
     publisher = {mathdoc},
     volume = {206},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1993_206_a11/}
}