%0 Journal Article %A P. N. Bogolyubov %T Causality of the invariant form factors in the decomposition of the current commutators %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1975 %P 15-33 %V 136 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1975_136_a2/ %G ru %F TM_1975_136_a2