OPTICAL-OPTICAL DOUBLE RESONANCE EXPERIMENTS WITH GALLIUM AND INDIUM ATOMS VIA OPTOGALVANIC DETECTION H.-O. Behrens, G. H. Guthöhrlein et A. KasperJ. Phys. Colloques, 44 C7 (1983) C7-239-C7-250DOI: https://doi.org/10.1051/jphyscol:1983720