TY - JOUR AU - A. Mahan AU - S. Smith BT - Physical Review A DA - Jan-11-1977 DO - 10.1103/PhysRevA.16.1789 PY - 1977 SP - 1789 EP - 1792 T2 - Physical Review A TI - Observation of coherent excitation processes in e-H collisions VL - 16 SN - 0556-2791 ER -