1. and in Lecture Notes in Chemistry (Springer Verlag, Berlin, 1980), No. 16.
2. in Modern Theoretical Chemistry, Ed. (Plenum, New York, 1977), Vol. 3, p. 129.
3. The Electronic Structure of Atoms and Molecules (Addison-Wesley, Reading, MA, 1972).
4. in Modern Theoretical Chemistry, Ed. (Plenum, New York, 1977), Vol. 3, p. 189.