P. Esherick, J.A. Armstrong, et al.
Physical Review Letters
P. Esherick, J.A. Armstrong, et al.
Physical Review Letters
R.E. Walkup, R.W. Dreyfus, et al.
Colloque International du CNRS 1982
R. Srinivasan, Bodil Braren, et al.
Journal of Applied Physics
W.E. Bron, R.W. Dreyfus
Physical Review Letters