1. M. Bramanti, M.C. Cerutti, W
p
1,2
Solvability for the Cauchy-Dirichlet Problem for Parabolic Equations with VMO coefficients, Comm. in Partial Differential Equations
18(9 and 10) (1993), 1735–1763.
2. F. Chiarenza, M. Frasca, P. Longo, Interior W
2,p
estimates for nondivergence elliptic equations with discontinuous coefficients, Ricerche di Mat.
40 (1991), 149–168.
3. F. Chiarenza, M. Frasca, P. Longo, W
2,p
-solvability of the Dirichlet problem for non divergence elliptic equations with VMO coefficients, Trans. Amer. Math. Soc.
336 (1993), 841–853.
4. G. Di Fazio, L
p estimates for divergence form elliptic equations with discontinuous coefficients, Bollettino U.M.I.
(7) 10-A (1996), 409–420.
5. E. Fabes, N. Riviere, Singular integrals with mixed homogeneity, Studia Math.
27 (1966), 19–38.