%0 Journal Article %A M. Frigon %A D. O'Regan %T On a generalization of a theorem of S. Bernstein %J Annales Polonici Mathematici %D 1988 %P 297-306 %V 48 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-48-3-297-306/ %R 10.4064/ap-48-3-297-306 %G en %F 10_4064_ap_48_3_297_306