Born, 1927, Ann. d. Physik, 84, 457, 10.1002/andp.19273892002
Fues, 1926, Ann. d. Physik, 80, 367, 10.1002/andp.19263851204
O. Burrau, 1927, Klg. Danske. Vid. Selskab., 7, 14
Heitler, 1927, Zeits. f. Physik, 44, 455, 10.1007/BF01397394
Morse, 1929, Phys. Rev., 33, 907, 10.1103/PhysRev.33.932
Schroedinger, 1926, Ann. d. Physik, 80, 483
Birge, 1925, Phys. Rev., 25, 240
Mecke, 1925, Zeits. f. Physik, 32, 823, 10.1007/BF01331717
Mulliken, 1928, Phys. Rev., 32, 206
Birge, 1929, Int. Crit. Tables
Birge, 1928, Proc. Nat. Acad., 14, 12, 10.1073/pnas.14.1.12
Jenkins, 1929, Proc. Roy. Soc., A122, 103, 10.1098/rspa.1929.0008
Birge, 1927, Molecular Spectra in Gases, N. R. C. Bull.
Rosentlal, 1929, Phys. Rev., 33, 163, 10.1103/PhysRev.33.163
Pomerov, 1927, Phys. Rev., 29, 57
Hyman, 1929, Nature, 123, 277, 10.1038/123277b0
Kratzer, 1920, Zeits. f. Physik, 3, 289, 10.1007/BF01327754