2001 PACS
Physics and Astronomy Classification Scheme (PACS) PACS is the Physics and Astronomy Classification Scheme . PACS numbers, developed by the American Institute of Physics, have been used in Physical Review since 1975 to identify fields and sub-fields of physics. (PACS codes from the Acoustics Appendix are not included here.) The 2001 PACS scheme is available in the following ways: Hierarchical ...
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