TY - JOUR
AU - R. Heppner
AU - J. Zorn
BT - Physical Review Letters
DA - Jan-11-1974
DO - 10.1103/PhysRevLett.33.1321
PY - 1974
SP - 1321
EP - 1324
T2 - Physical Review Letters
TI - Near-Threshold Excitation of Metastable Helium by Electron Impact as Studied by the Time-of-Flight Method
UR - http://link.aps.org/doi/10.1103/PhysRevLett.33.1321
VL - 33
SN - 0031-9007
ER -