TY - JOUR AU - Dmitri V. Bykov TI - Flag Manifold Sigma Models and Nilpotent Orbits JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2020 SP - 89 EP - 98 VL - 309 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_2020_309_a5/ LA - ru ID - TM_2020_309_a5 ER -