TY - JOUR AU - Y.-K. Kim BT - Physical Review A DA - Jan-08-1983 DO - 10.1103/PhysRevA.28.656 PY - 1983 SP - 656 EP - 666 T2 - Physical Review A TI - Angular and energy distributions of secondary electrons from helium. Slow electrons ejected by electron impact UR - http://link.aps.org/doi/10.1103/PhysRevA.28.656 VL - 28 SN - 0556-2791 ER -