TY - JOUR AU - John Cooper AU - E. Smith AU - C. Vidal BT - Journal of Physics B: Atomic and Molecular Physics DA - Nov-03-1974 DO - 10.1088/0022-3700/7/4/005 PY - 1974 SP - L101 EP - L105 T2 - Journal of Physics B: Atomic and Molecular Physics TI - Influence of ion dynamics on Hα and Hβ at low densities VL - 7 SN - 0022-3700 ER -