We consider the second order differential equation
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where (x,t)is an element ofR(N+1), 0 <m(0)less than or equal toN, the coeff
icients a(i,j) belong to a suitable space of vanishing mean oscillation fun
ctions VMOL and B=(b(i,j)) is a constant real matrix. The aim of this paper
is to study interior regularity for weak solutions to the above equation a
ssuming that F-j belong to a function space of Morrey type.