@article{105783, author = {Josef Dane\v s}, title = {On the strict convexity of the polar operator}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {018}, year = {1977}, pages = {393-400}, zbl = {0356.46002}, mrnumber = {0442628}, language = {en}, url = {http://dml.mathdoc.fr/item/105783} }
Daneš, Josef. On the strict convexity of the polar operator. Commentationes Mathematicae Universitatis Carolinae, Tome 018 (1977) pp. 393-400. http://gdmltest.u-ga.fr/item/105783/
An analogon of an inequality between arithmetic and harmonic means for convex sets, Optimizacija 12 (1973), 116-121. (1973) | MR 0412962