Two methods for nuclear spin determination in collinear laser spectroscopy : classical r.f. magnetic resonance and observation of the Larmor precession N. Bendali, H.T. Duong, J.M. Saint-Jalm et J.L. VialleJ. Phys. France, 45 3 (1984) 421-427DOI: https://doi.org/10.1051/jphys:01984004503042100