TY - JOUR AU - A. A. Kovalevsky TI - Entropy solutions of the Dirichlet problem for a~class of non-linear elliptic fourth-order equations with right-hand sides in~$L^1$ JO - Izvestiya. Mathematics PY - 2001 SP - 231 EP - 283 VL - 65 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_2001_65_2_a1/ LA - en ID - IM2_2001_65_2_a1 ER -