Measurement of the atomic Na(3P) lifetime and of retardation in the interaction between two atoms bound in a moleculeK. M. Jones, P. S. Julienne, P. D. Lett, W. D. Phillips, E. Tiesinga and C. J. WilliamsEurophys. Lett., 35 2 (1996) 85-90DOI: https://doi.org/10.1209/epl/i1996-00536-9