TY - JOUR AU - E. Wåhlin AU - James Thompson AU - Gordon Dunn AU - R. Phaneuf AU - D. Gregory AU - A. Smith BT - Physical Review Letters DA - 1991-01 DO - 10.1103/PhysRevLett.66.157 PY - 1991 SP - 157 EP - 160 T2 - Physical Review Letters TI - Electron-impact excitation of Si3+(3s -> 3p) using a merged-beam electron-energy-loss technique VL - 66 SN - 0031-9007 ER -