%0 Journal Article %A A. V. Shchelkachev %T Relativistically invariant representation of arbitrary bilinear combinations of Dirac spinors %J Teoretičeskaâ i matematičeskaâ fizika %D 1993 %P 3-22 %V 96 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1993_96_1_a0/ %G ru %F TMF_1993_96_1_a0