Citation: Wh. Yang et al., A SURFACE-ENHANCED HYPER-RAMAN AND SURFACE-ENHANCED RAMAN-SCATTERING STUDY OF TRANS-1,2-BIS(4-PYRIDYL)ETHYLENE ADSORBED ONTO SILVER FILM OVER NANOSPHERE ELECTRODES - VIBRATIONAL ASSIGNMENTS - EXPERIMENT AND THEORY, The Journal of chemical physics, 104(11), 1996, pp. 4313-4323