Gordon F. Newell and Elliott W. Montroll
Rev. Mod. Phys. 25, 353 (1953) - Published 1 April, 1953
D. R. Inglis
Rev. Mod. Phys. 25, 390 (1953) - Published 1 April, 1953
J. M. Hollander, I. Perlman, and G. T. Seaborg
Rev. Mod. Phys. 25, 469 (1953) - Published 1 April, 1953