TY - JOUR AU - A. I. Shkuratskii TI - Subgroups of a symplectic group over the field of fractions of JO - Algebra i logika PY - 1984 SP - 578 EP - 596 VL - 23 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_1984_23_5_a7/ LA - ru ID - AL_1984_23_5_a7 ER -