Conyers Herring and M. H. Nichols
Rev. Mod. Phys. 21, 185 (1949) - Published 1 April, 1949
Emilio Segrè and A. C. Helmholz
Rev. Mod. Phys. 21, 271 (1949) - Published 1 April, 1949
Victor F. Weisskopf
Rev. Mod. Phys. 21, 305 (1949) - Published 1 April, 1949
Martin O. Stern
Rev. Mod. Phys. 21, 316 (1949) - Published 1 April, 1949
J. C. Henniker
Rev. Mod. Phys. 21, 322 (1949) - Published 1 April, 1949