Pade Approximants and the Fixed-Points of the three-flavour QCD   beta-Function
  The positive zeros of [2|1], [1|2] and the most general possible [2|2] Pade approximants whose Maclaurin series reproduce the presently known terms in the three-flavour QCD beta-function are all shown to correspond to ultraviolet fixed points. 
V. Elias, T. G. Steele