TY - JOUR AU - Oleg Verbitsky TI - Ramseyan variations on symmetric subsequences JO - Algebra and discrete mathematics PY - 2003 SP - 111 EP - 124 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ADM_2003_1_a10/ LA - en ID - ADM_2003_1_a10 ER -