FOUR-WAVE MIXING STUDIES OF IONS IN SOLIDS R. C. POWELL, A. SUCHOCKI, F. M. DURVILLE, G. D. GILLILAND, E. G. BEHRENS, G. J. QUARLES et G. BOULONJ. Phys. Colloques, 48 C7 (1987) C7-417-C7-422DOI: https://doi.org/10.1051/jphyscol:19877100
