%0 Journal Article %A R. Z. Zhdanov %A W. I. Fushchych %T Non-lie symmetry of Galileo-invariant equation for a~particle with spin $s=1/2$ %J Teoretičeskaâ i matematičeskaâ fizika %D 1991 %P 413-419 %V 89 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1991_89_3_a7/ %G ru %F TMF_1991_89_3_a7