TY - JOUR AU - E. L. Bashkirov TI - The group $\mathrm{Spin}_8$ and some subgroups of the unitary group of degree four over a~quaternion algebra JO - Algebra i analiz PY - 2001 SP - 43 EP - 64 VL - 13 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AA_2001_13_3_a2/ LA - ru ID - AA_2001_13_3_a2 ER -