Observation of the long-range potential well of the (6)1Σg+(3s+5s) state of Na2T. Laue, P. Pellegrini, O. Dulieu, C. Samuelis, H. Knöckel, F. Masnou-Seeuws and E. TiemannEur. Phys. J. D, 26 2 (2003) 173-185DOI: https://doi.org/10.1140/epjd/e2003-00221-7