@article{GDZPPN002360535,
title = {Smoothness of sums of convex sets with real analytic boundaries.},
journal = {Mathematica Scandinavica},
volume = {67},
year = {1990},
pages = {225-230},
zbl = {0738.52003},
url = {http://dml.mathdoc.fr/item/GDZPPN002360535}
}
Boman, Jan. Smoothness of sums of convex sets with real analytic boundaries.. Mathematica Scandinavica, Tome 67 (1990) pp. 225-230. http://gdmltest.u-ga.fr/item/GDZPPN002360535/