  In this paper we will investigate whether the scaling assumptions made in
previous studies for the transition at energies outside the band centre can be
reconfirmed in numerical calculations, and in particular whether the
conductivity sigma follows a power law close to the critical energy E_c. For
this purpose we will use the recursive Green's function method to calculate the
four-terminal conductance of a disordered system for fixed disorder strength at
temperature T=0. Applying the finite-size scaling analysis we will compute the
critical exponent and determine the mobility edge, i.e. the MIT outside the
band centre.
