In: ADVANCES IN QUANTUM CHEMISTRY, VOL 63: UNSTABLE STATES IN THE CONTINUOUS SPECTRA, PT II - INTERPRETATION, THEORY AND APPLICATIONS, ed. Nicolaides, CA and Brandas, E, ELSEVIER ACADEMIC PRESS INC, 525 B STREET, SUITE 1900, SAN DIEGO, CA 92101-4495 USA, pp. 309-342