1. Elliptic partial differential equations of second order;Gilbarg,2001
2. Interior W2,p estimates for nondivergence elliptic equations with discontinuous coefficients;Chiarenza;Ric. Mat.,1991
3. Elliptic and parabolic equations with discontinuous coefficients;Maugeri,2000
4. Discontinuous Galerkin finite element approximation of nondivergence form elliptic equations with Cordès coefficients;Smears;SIAM J. Numer. Anal.,2013
5. Elliptic problems in nonsmooth domains;Grisvard,2011