Energy pooling to the Ba 6s6p 1P10 level arising from collisions between pairs of metastable Ba 6s5d 3DJ atomsC. Vadla, K. Niemax and V. HorvaticEur. Phys. J. D, 1 2 (1998) 139-147DOI: https://doi.org/10.1007/s100530050074