Authors:
ULLRICH J
MOSHAMMER R
BERG H
MANN R
TAWARA H
DORNER R
EULER J
SCHMIDTBOCKING H
HAGMANN S
COCKE CL
UNVERZAGT M
LENCINAS S
MERGEL V
Citation: J. Ullrich et al., HIGH-VELOCITY LIMIT FOR THE RATIO OF HELIUM DOUBLE-TO-SINGLE IONIZATION FOR HIGHLY-CHARGED, BARE-ION IMPACT, Physical review letters, 71(11), 1993, pp. 1697-1700