Uniqueness results for nonlinear elliptic problems with two lower order terms

In this paper we consider a class of Dirichlet problems for nonlinear elliptic equations of the type{−div(a(x,∇u))−div(Φ(x,u))+H(x,∇u)=fin Ω,u=0on ∂Ω, where Ω   is a bounded open subset of RNRN, N>2N>2, f   is an L1(Ω)L1(Ω) function. We fix some structural conditions on a, Φ and H to prove uniqueness results for solutions obtained as limit of approximations.