TY - JOUR AU - B. O. Makarevich TI - Open symmetric orbits of reductive groups in symmetric $R$-spaces JO - Sbornik. Mathematics PY - 1973 SP - 406 EP - 418 VL - 20 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1973_20_3_a5/ LA - en ID - SM_1973_20_3_a5 ER -