On a new method in spectroscopy : laser-induced frequency shift of self-excited ion oscillations R. C. Bobulescu, M. A. Brǎtescu, C. Stǎnciulescu et G. MusaJ. Phys. III France, 2 7 (1992) 1367-1372DOI: https://doi.org/10.1051/jp3:1992182