Indirect sensitivity to Z's in high-energy e+e- collisions: a "standard"   vs. "composite" study
  We compare the phenomenology of two models, the so-called "minimal Z'" and an effective model an SM-like Higgs is realised as a composite state of a new strong interaction, at a multi-TeV linear collider in the hypothesis that the new physics is at a scale beyond the direct reach of the machine. 
Marco Battaglia, Francesco Coradeschi, Stefania De Curtis and Daniele   Dominici
hep-ph