@misc{SM_1991_70_2_a15,
     title = {Correction},
     journal = {Sbornik. Mathematics},
     publisher = {mathdoc},
     volume = {70},
     number = {2},
     year = {1991},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1991_70_2_a15/}
}