%0 Journal Article %A Andrew Lazarus %T Lehmer's semi-symmetric cyclotomic sums %J Acta Arithmetica %D 1992 %P 221-227 %V 62 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-62-3-221-227/ %R 10.4064/aa-62-3-221-227 %G de %F 10_4064_aa_62_3_221_227