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© 1987 American Institute of Physics.
1987
American Institute of Physics
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Michael B. Green, John H. Schwarz, Edward Witten, Paul H. Frampton; Superstring Theory Volume 1: Introduction Volume 2: Loop Amplitudes, Anomalies and Phenomenology. Physics Today 1 November 1987; 40 (11): 91–92. https://doi.org/10.1063/1.2820272
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