@article{AA_2001_13_3_a2,
     author = {E. L. Bashkirov},
     title = {The group $\mathrm{Spin}_8$ and some subgroups of the unitary group of degree four over a~quaternion algebra},
     journal = {Algebra i analiz},
     pages = {43--64},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2001_13_3_a2/}
}