1. Bozio, R. 1987.Molecular Electronics, Edited by: Borissov, M. 666Singapore: World Scientific. For an introduction to the optical studies of organic conductors and superconductors one can refer to
2. Jacobsen, C. S. 1987.Low Dimensional Conductors and Superconductors, Edited by: Jerome, D. and Caron, L. G. 253New York: Plenum.
3. Reference 25 here
4. Herbstein, F. H. 1971.Perspectives in Structural Chemistry, Edited by: Dunitz, J. D. and Ibers, J. A. Vol. 4, 166New York: Wiley.