@article{10_37236_418,
     author = {Konrad J. Swanepoel and Pavel Valtr},
     title = {Large convexly independent subsets of {Minkowski} sums},
     journal = {The electronic journal of combinatorics},
     year = {2010},
     volume = {17},
     doi = {10.37236/418},
     zbl = {1205.52011},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/418/}
}