%0 Journal Article %A P. Erdös %A E. Szemerédi %T On a problem of P. Erdos and S. Stein %J Acta Arithmetica %D 1968 %P 85-90 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-15-1-85-90/ %R 10.4064/aa-15-1-85-90 %G de %F 10_4064_aa_15_1_85_90