@article{AA_2005_17_4_a5,
     author = {E. A. Riss},
     title = {Generation of {Borel} sets by balls},
     journal = {Algebra i analiz},
     pages = {181--204},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2005_17_4_a5/}
}