%0 Journal Article %A Subbarao, M.V. %T On a Theorem of Erdös and Szekeres %J Canadian mathematical bulletin %D 1968 %P 597-598 %V 11 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-072-x/ %R 10.4153/CMB-1968-072-x %F 10_4153_CMB_1968_072_x