%0 Journal Article %A Nontas E. Kechagias %T Modular invariant theory, homology operations, and the transfer between rings of invariants of parabolic subgroups %J Δελτίο της Ελληνικής Μαθηματικής Εταιρίας %D 1996 %P 79-88 %V 38 %I mathdoc %U http://geodesic.mathdoc.fr/item/DEME_1996__38_a16/ %G gr %F DEME_1996__38_a16