R. D. Ketchpel
发表
Edward J. Staples,
Gary W. Watson,
R. D. Ketchpel,
1992,
IEEE 1992 Ultrasonics Symposium Proceedings.
R. D. Ketchpel,
1963
.
J. Cape,
R. D. Ketchpel,
L. Hale,
1978,
IEEE Transactions on Electron Devices.
T. C. Lim,
R. D. Ketchpel,
B. García,
1980,
1980 International Electron Devices Meeting.