Physical Review LettersGround State of the Kondo Many-Body Scattering ProblemAlan J. Heeger, Michael A. JensenPublished Mar 27, 1967• 64 citationsPublisherAbstractReceived 16 January 1967DOI:https://doi.org/10.1103/PhysRevLett.18.488©1967 American Physical SocietyDOI10.1103/physrevlett.18.488