J. A. Ball, J. A. Wheeler, and E. L. Firemen
Rev. Mod. Phys. 45, 333 (1973) - Published 1 July, 1973
Raymond A. Sorensen
Rev. Mod. Phys. 45, 353 (1973) - Published 1 July, 1973
George J. Schulz
Rev. Mod. Phys. 45, 378 (1973) - Published 1 July, 1973
George J. Schulz
Rev. Mod. Phys. 45, 423 (1973) - Published 1 July, 1973
J. W. Gadzuk and E. W. Plummer
Rev. Mod. Phys. 45, 487 (1973) - Published 1 July, 1973
