@article{AA_2011_23_5_a3,
     author = {A. Yu. Luzgarev and A. K. Stavrova},
     title = {Elementary subgroup of an isotropic reductive group is perfect},
     journal = {Algebra i analiz},
     pages = {140--154},
     publisher = {mathdoc},
     volume = {23},
     number = {5},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2011_23_5_a3/}
}