%0 Journal Article %A S. A. Bychkov %A D. V. Yur'ev %T Three algebraic structures of quantum projective ($\mathrm{sl}(2,\mathbb C)$-invariant) field theory %J Teoretičeskaâ i matematičeskaâ fizika %D 1993 %P 336-347 %V 97 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1993_97_3_a1/ %G ru %F TMF_1993_97_3_a1