%0 Journal Article %A Josef Berger %A Douglas S. Bridges %A Gregor Svindland %T Sufficient convexity and best approximation %J Documenta mathematica %D 2024 %P 1269-1279 %V 29 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4171/dm/985/ %R 10.4171/dm/985 %F 10_4171_dm_985