%0 Journal Article %A Halberstam, H. %T Application of a method of Szemeredi %J Glasgow mathematical journal %D 1985 %P 81-85 %V 26 %U http://geodesic.mathdoc.fr/articles/10.1017/S001708950000608X/ %R 10.1017/S001708950000608X %F 10_1017_S001708950000608X