%0 Journal Article %A Pandey, Ram Krishna %A Tripathi, Amitabha %T Note on a problem of Motzkin regarding density of integral sets with missing differences %J Journal of integer sequences %D 2011 %V 14 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/JIS_2011__14_6_a0/ %G en %F JIS_2011__14_6_a0