%0 Journal Article %A H. Lenstra %T Generating units modulo an odd integer by addition and subtraction %J Acta Arithmetica %D 1993 %P 383-388 %V 64 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-64-4-383-388/ %R 10.4064/aa-64-4-383-388 %G en %F 10_4064_aa_64_4_383_388