TY - JOUR AU - S. Ya. Serovaǐskiǐ TI - Optimal Control of an Elliptic Equation with a Nonsmooth Nonlinearity JO - Differencialʹnye uravneniâ PY - 2003 SP - 1420 EP - 1424 VL - 39 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2003_39_10_a12/ LA - ru ID - DE_2003_39_10_a12 ER -