R. A. Shaffer
发表
M. W. Daniels,
R. A. Shaffer,
1998
.
R. M. Edwards,
S. A. Arndt,
R. A. Shaffer,
2006
.
R. A. Shaffer,
2001,
2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262).
Robert M. Edwards,
R. A. Shaffer,
Weidong He,
2004
.