1. J. Chýla
    Renormalization scheme dependence and infrared behavior in e+ e- annihilations and tau lepton decay at the next-to - next-to-leading order of perturbative QCD
    Phys. Lett. B 267 (1991) 269 - 276
  2. J. Chýla
    RENORMALIZATION SCHEME INVARIANT PERTURBATION THEORY: MIRACLE OF MIRAGE?
    Phys. Rev. D 31 (1985) 2690 - 2692