%0 Journal Article %A A. O. Slisenko %T Arithmetical operations on certain sets of duplexes %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1967 %P 187-207 %V 93 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1967_93_a10/ %G ru %F TM_1967_93_a10