Conserving Diagrammatic approximations for quantum impurity models: NCA and CTMA
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Author:
J. Kroha and P. Wölfle
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Source:
J. Phys. Soc. Jpn. Vol. 74(1), p. 16 (2005)
Special Issue: "Kondo Effect - 40 Years after the discovery" - Date: January 2005