@article{MZM_2003_74_4_a8,
     author = {E. A. Polyakov and A. E. Perov},
     title = {$F_\rho$  {Functions}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {559--563},
     publisher = {mathdoc},
     volume = {74},
     number = {4},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2003_74_4_a8/}
}