P. T. Landsberg
Rev. Mod. Phys. 28, 363 (1956) - Published 1 October, 1956
J. Ross Macdonald and Malcolm K. Brachman
Rev. Mod. Phys. 28, 393 (1956) - Published 1 October, 1956
Rudi H. Nussbaum
Rev. Mod. Phys. 28, 423 (1956) - Published 1 October, 1956
K. Alder, A. Bohr, T. Huus, B. Mottelson, and A. Winther
Rev. Mod. Phys. 28, 432 (1956) - Published 1 October, 1956