%0 Journal Article %A A. L. Kataev %A V. S. Molokoedov %T A generalized Crewther relation and the V scheme: analytic results in fourth-order perturbative QCD and QED %J Teoretičeskaâ i matematičeskaâ fizika %D 2023 %P 44-76 %V 217 %N 1 %U http://geodesic.mathdoc.fr/item/TMF_2023_217_1_a3/ %G ru %F TMF_2023_217_1_a3