International Union of Pure and Applied Physics, University of California, Irvine, International Conference on Localized Excitations in Solids University of California, Irvine, & Wallis, R. F. (1968). Localized excitations in solids: Proceedings of the first international conference on localized excitations in solids, held at the university of California at Irvine, September 18*22,1967. Plenum Press.

International Union of Pure and Applied Physics, Irvine University of California, Irvine International Conference on Localized Excitations in Solids University of California, và R. F. Wallis. Localized Excitations in Solids: Proceedings of the First International Conference on Localized Excitations in Solids, Held at the University of California at Irvine, September 18*22,1967. New York: Plenum Press, 1968.

International Union of Pure and Applied Physics, et al. Localized Excitations in Solids: Proceedings of the First International Conference on Localized Excitations in Solids, Held at the University of California at Irvine, September 18*22,1967. Plenum Press, 1968.