Introductory Note

• 1 July 1965
• journal article
• research article
• Published by American Physical Society (APS) in Reviews of Modern Physics
• Vol. 37  (3) , 327-329
• https://doi.org/10.1103/revmodphys.37.327

Abstract

Keywords

• DOI.ORG/10.1103/REVMODPHYS.37.327
• HTTPS
• INTRODUCTORY NOTE DOI