1. J. Fischer, FZÚ)
    On the role of power expansions in quantum field theory
    International Journal of Modern Physics A 12 (1997) 3625-3633.
  2. Next-to-next-to-leading order QCD analysis of the Gross-LLewellyn-Smith sum rule and the higher twist effects
    Physics Letters B 297 (1992) 385-397.
  3. Perturbation theory and nonperturbative effects: A Happy marriage?
    Czech. J. Phys. 42 (1992) 263 - 283
  4. Summing perturbation expansions by means of renormalization group considerations
    Czech. J. Phys. 40 (1990) 367 - 392