1. B.J. Alder and T.E. Wainwright, J.Chem.Phys. 31, 459 (1959)
2. N. Metropolis, A.W. Rosenbluth, M.N.Rosenbluth, A.H.Teller and E.Teller, J.Chem.Phys. 21, 1087 (1953)
3. E.E. Polymeropoulos, P. Bopp, J.Brickmann, L.Jansen and R.Block, Phys.Rev. A 31, 3565 (1985)
4. E. Clementi and G. Corongiu, Int.J.Quant.Chem.Symp. 10, 31 (1983)
5. J. Detrich, G. Corongiu and E. Clementi, Int.J.Quant.Chem. 18, 701 (1984)