NONLINEAR OPTICAL EXCITATION AND PHOTOCONDUCTIVITY OF THE VIBRONIC STATES OF THE F-CENTERS F. DE MARTINI, G. GIULIANI, P. MATALONI et F. SIMONIJ. Phys. Colloques, 37 C7 (1976) C7-105DOI: https://doi.org/10.1051/jphyscol:1976719
