@article{AA_1999_11_3_a6,
     author = {G. A. Noskov},
     title = {Multidimensional isoperimetric inequalities and the ``non-combability'' of the {Hilbert} modular group},
     journal = {Algebra i analiz},
     pages = {196--206},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1999_11_3_a6/}
}