1. I. Langmuir and H.M. Mott-Smith, Gen.Elec.Rev. 26, 731 (1923).
2. I. Langmuir and H.M. Mott-Smith, Gen.Elec.Rev. 27. 449, 583, 616, 726, 810 (1924).
3. Also see I. Langmuir and K.T. Compton, Rev. Mod. Ihys. 3, 191 (1931).
4. H. Carslaw and Jaeger, Conduction of Heat in Solids, Oxford Press, Oxford (1959), p 401.
5. H. Vernickel, J.Nucl.Mat. 111 & 112, 531 (1982).