TY - JOUR AU - R. R. Teymurazyan TI - Two side estimates for the double obstacle problem JO - Proceedings of the Yerevan State University. Physical and mathematical sciences PY - 2009 SP - 8 EP - 15 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZERU_2009_1_a1/ LA - en ID - UZERU_2009_1_a1 ER -