1. W. Harrison, Electronic Structure and Properties of Solids: Physics of the Chemical Bond, 2nd edn. (Dover, New York, 1989)
2. E. Kahiras, Atomic and Electronic Structure of Solids(Cambridge University Press, Cambridge, 2003)
3. R. Martin, Electronic Structure. Basic Theory and Practical Methods(Cambridge University Press, Cambridge, 2004)
4. L. Kantorovich, Quantum Theory of the Solid State(Kluwer Academic, Dordrecht, 2004)
5. V.R. Saunders, R. Dovesi, C. Roetti, R. Orlando, C.M. Zicovich-Wilson, N.M. Harrison, CRYSTAL-2003 Users Manual(University of Torino, Torino, 2003).
http://www.crystal.unito.it