Mitchell, G.E. ; Bilpuch, E.G. ; Bybee, C.R... Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms.
79
(1993)
1-4
- p.
290-292
,
1993
Mitchell, G.E. ; Bilpuch, E.G. ; Endt, P.M... Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms.
56-57
(1991)
- p.
446-450
,
1991