@article{SM_1983_45_1_a3,
     author = {Yu. L. Ershov},
     title = {Henselian valuations of division rings and the group $SK_1$},
     journal = {Sbornik. Mathematics},
     pages = {63--71},
     year = {1983},
     volume = {45},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1983_45_1_a3/}
}