@article{10_4171_dm_985,
     author = {Josef Berger and Douglas S. Bridges and Gregor Svindland},
     title = {Sufficient convexity and best approximation},
     journal = {Documenta mathematica},
     pages = {1269--1279},
     publisher = {mathdoc},
     volume = {29},
     number = {6},
     year = {2024},
     doi = {10.4171/dm/985},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/985/}
}