@misc{SM_2015_206_2_a8,
     title = {Editorial},
     journal = {Sbornik. Mathematics},
     publisher = {mathdoc},
     volume = {206},
     number = {2},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SM_2015_206_2_a8/}
}