TY - JOUR
AU - M. Hidalgo
AU - Sydney Geltman
BT - Journal of Physics B: Atomic and Molecular Physics
DA - Jan-03-1972
DO - 10.1088/0022-3700/5/3/029
PY - 1972
SP - 617
EP - 626
T2 - Journal of Physics B: Atomic and Molecular Physics
TI - A high energy approximation. III. Helium excitation by electrons
VL - 5
SN - 0022-3700
ER -