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    Summing perturbation expansions by means of renormalization group considerations
    Czech. J. Phys. 40 (1990) 367 - 392
  2. J. Chýla
    INFRARED FIXED POINTS IN ASYMPTOTICALLY FREE FIELD THEORIES: WHAT DO THEY TELL US?
    Phys. Rev. D 38 (1988) 3845 - 3849