1. V. Janiš, P. Augustinský
    Analytic impurity solver with Kondo strong-coupling asymptotics
    Physical Review B 75 (2007) 165108(1)-165108(7).
  2. V. Janiš
    Cooperative behaviour of interacting electrons and macroscopic quantum coherence in nmetals
    Československý časopis pro fyziku 57 (2007) 298-308.