TY - JOUR AU - V. V. Balashchenko AU - O. V. Dashevich TI - Geometry of canonical structures on homogeneous~$\Phi$-spaces of order~4 JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1994 SP - 149 EP - 150 VL - 49 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1994_49_4_a6/ LA - en ID - RM_1994_49_4_a6 ER -