%0 Journal Article %A Muzychuk, Mikhail %T Difference sets with $n=2p^m$ %J Journal of Algebraic Combinatorics %D 1998 %P 77-89 %V 7 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JAC_1998__7_1_a1/ %G en %F JAC_1998__7_1_a1