This content is only available via PDF.
© 1971 American Institute of Physics.
1971
American Institute of Physics
You do not currently have access to this content.
Martin J. Klein, H. B. G. Casimir; Paul Ehrenfest, Vol. 1.. Physics Today 1 September 1971; 24 (9): 49–50. https://doi.org/10.1063/1.3022930
Download citation file:
Purchase an annual subscription for $25. A subscription grants you access to all of Physics Today's current and backfile content.