S. Washburn, R.A. Webb, et al.
Physical Review B
No abstract available.
S. Washburn, R.A. Webb, et al.
Physical Review B
R. Tsu, W.E. Howard, et al.
Physical Review
H. Takaoka, Chin-An Chang, et al.
Physica B+C
R.B. Laibowitz, L. Esaki, et al.
Physics Letters A