@article{AA_2022_34_1_a2,
     author = {N. Vavilov and Z. Zhang},
     title = {Commutators of relative and unrelative elementary unitary groups},
     journal = {Algebra i analiz},
     pages = {61--104},
     publisher = {mathdoc},
     volume = {34},
     number = {1},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2022_34_1_a2/}
}