TY - JOUR AU - V. V. Balashchenko AU - Yu. D. Churbanov TI - Invariant structures on homogeneous $\Phi$-spaces of order~5 JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1990 SP - 195 EP - 197 VL - 45 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1990_45_1_a5/ LA - en ID - RM_1990_45_1_a5 ER -