%0 Journal Article %A Groemer, H. %T On Plane Sections and Projections of Convex Sets %J Canadian journal of mathematics %D 1969 %P 1331-1337 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-146-9/ %R 10.4153/CJM-1969-146-9 %F 10_4153_CJM_1969_146_9