TY - JOUR AU - A. Zajonc AU - Gabriel Weinreich AU - John Pearl AU - J. Zorn BT - Physical Review A DA - Jan-10-1978 DO - 10.1103/PhysRevA.18.1408 PY - 1978 SP - 1408 EP - 1414 T2 - Physical Review A TI - Differential cross section for electron impact excitation of metastable helium UR - http://link.aps.org/doi/10.1103/PhysRevA.18.1408 VL - 18 SN - 0556-2791 ER -