TY - JOUR AU - A. V. Boluchevskaya TI - Smooth approximation for the solutions of elliptic systems JO - Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ PY - 2011 SP - 21 EP - 28 IS - 8 UR - http://geodesic.mathdoc.fr/item/VSGU_2011_8_a1/ LA - ru ID - VSGU_2011_8_a1 ER -