TY - JOUR AU - Sydney Geltman BT - Physical Review A DA - Jan-05-1997 DO - 10.1103/PhysRevA.55.3755 PY - 1997 SP - 3755 EP - 3759 T2 - Physical Review A TI - Low-energy laser-assisted electron-helium collisions VL - 55 SN - 1050-2947 ER -