@article{MZM_1995_58_5_a3,
     author = {M. D. Mamaghani},
     title = {Growth functions of groups of surfaces},
     journal = {Matemati\v{c}eskie zametki},
     pages = {681--693},
     publisher = {mathdoc},
     volume = {58},
     number = {5},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1995_58_5_a3/}
}