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© 1989 American Institute of Physics.
1989
American Institute of Physics
Andrew C. Anderson, William E. Keller, William N. Lawless, Ralph C. Longsworth, Raymond E. Sarwinski; William A. Steyert. Physics Today 1 January 1989; 42 (1): 100. https://doi.org/10.1063/1.2810895
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