1. Gyorffy, B.L., Stocks, G.M.: Phys. Rev. Lett.50, 374 (1983)
2. Stocks, G.M., Winter, H.: In: The electronic structure of complex systems. Phariseau, P., Temmerman, W.M. (eds.). New York: Plenum Press 1984
3. Gyorffy, B.L., Stocks, G.M.: In: Electrons in disordered materials and at metallic surfaces. Phariseau, P., Gyorffy, B.L., Scheire, L. (eds.). New York: Plenum Press 1979
4. Stocks, G.M.: Private communication
5. Goldstein, H.E., Pfliegl, R., Kirchmayr, H.: International Conference of Soft X-Ray, NBS Washington, Sept. 1972, Gaitherburg, p. 238