TY - JOUR AU - C. Holt AU - M. Raymer AU - William Reinhardt BT - Physical Review A DA - Jan-06-1983 DO - 10.1103/PhysRevA.27.2971 PY - 1983 SP - 2971 EP - 2988 T2 - Physical Review A TI - Time dependences of two-, three-, and four-photon ionization of atomic hydrogen in the ground 12S and metastable 2^2S states VL - 27 SN - 0556-2791 ER -