TY - JOUR AU - John Hall BT - IEEE Journal of Quantum Electronics DA - 1966-09 DO - 10.1109/JQE.1966.1074081 PY - 1966 SP - 361 EP - 363 T2 - IEEE Journal of Quantum Electronics TI - 3C4 - Two-quantum photoionization of Cs and I- VL - 2 SN - 0018-9197 ER -