%0 Journal Article %A Yu. I. Babenko %T Power invariants of joined coaxial prisms %J Zapiski Nauchnykh Seminarov POMI %D 1999 %P 31-39 %V 261 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1999_261_a1/ %G ru %F ZNSL_1999_261_a1