@article{AA_2016_28_5_a5,
     author = {N. K. Ngoc and M. H. Bien and B. X. Hai},
     title = {Free subgroups in almost subnormal subgroups of general skew linear groups},
     journal = {Algebra i analiz},
     pages = {220--235},
     publisher = {mathdoc},
     volume = {28},
     number = {5},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2016_28_5_a5/}
}