References
- PAULI , W. Jr. 1920 . Z. Physik. , 2 : 201
- LANGEVIN , P. 1905 . J. Phys. théor. appl. , 4 : 678 1905, Annls Chim. Phys., 5, 70
- VAN VLECK , J. H. 1966 . The Theory of Electric and Magnetic Susceptibilities , Oxford University Press .
- PAULING , L. 1927 . Proc. R. Soc. A , 114 : 181