1. A full bibliography to about 1970 can be found in - J.C. Slater, ‘The Quantum Theory of Molecules and Solids, Vol.4’ ( New York: McGraw-Hill, 1974 ).
2. A recent review of SCF band calculations is provided by -D.D. Koelling, Reports on Progr. in Phys. 44, 139–212 (1981).
3. Pseudopotential work may be traced through the articles by Cohen and Zunger in - ‘Structure and Bonding in crystals’, Vol.l, Ed. M.O’Keefe and A. Navrotsky, (Academic 1981). M.L. Cohen, p.25–48: A. Zunger, p. 73–136 respectively.
4. Recent work of the Cambridge school is summarized in - Solid state physics, vol.35, (Academic, 1980). For our present purposes note especially the article by D.W. Bullett p. 129–214 on improved T.B. methods.
5. The discrete variational method is discussed in - A. Zunger and A.J. Freeman, Phys.Rev. B15, 4716, 5049 (1977) B16, 906, 2901 (1977); B17, 1839 (1978).