K. Tillmann, H. J. Andrä, and W. Wittmann

Phys. Rev. Lett. 30, 155 (1973) - Published 29 January, 1973

W. G. Breiland, C. B. Harris, and A. Pines

Phys. Rev. Lett. 30, 158 (1973) - Published 29 January, 1973

S. Clough and B. J. Mulady

Phys. Rev. Lett. 30, 161 (1973) - Published 29 January, 1973

G. Yonas, K. R. Prestwich, J. W. Poukey, and J. R. Freeman

Phys. Rev. Lett. 30, 164 (1973) - Published 29 January, 1973

J. M. Rowell

Phys. Rev. Lett. 30, 167 (1973) - Published 29 January, 1973

B. F. Levine

Phys. Rev. Lett. 30, 171 (1973) - Published 29 January, 1973

Edward A. Stern and Dale E. Sayers

Phys. Rev. Lett. 30, 174 (1973) - Published 29 January, 1973

D. E. Eastman and W. D. Grobman

Phys. Rev. Lett. 30, 177 (1973) - Published 29 January, 1973

F. Meier and P. Wyder

Phys. Rev. Lett. 30, 181 (1973) - Published 29 January, 1973

Yu-Chien Liu

Phys. Rev. Lett. 30, 184 (1973) - Published 29 January, 1973

E. R. Harrison

Phys. Rev. Lett. 30, 188 (1973) - Published 29 January, 1973