R.W. Gammon, E. Courtens, et al.
Physical Review B
No abstract available.
R.W. Gammon, E. Courtens, et al.
Physical Review B
J.C. Marinace
JES
O.F. Schirmer, W. Berlinger, et al.
Solid State Communications
R.J. Gambino, N.R. Stemple, et al.
Journal of Physics and Chemistry of Solids