Department of Particle Theory and Cosmology

  1. 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. Summing perturbation expansions by means of renormalization group considerations
    Czech. J. Phys. 40 (1990) 367 - 392