M. A. Melvin

Rev. Mod. Phys. 32, 477 (1960) - Published 1 July, 1960

A. M. Lane

Rev. Mod. Phys. 32, 519 (1960) - Published 1 July, 1960

M. H. Macfarlane and J. B. French

Rev. Mod. Phys. 32, 567 (1960) - Published 1 July, 1960