%0 Journal Article
%A W. Kuperberg
%T On minimum area quadrilaterals and triangles circumscribed about convex plane regions.
%J Elemente der Mathematik
%D 1983
%P 57-61
%V 38
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ELMA_1983__38_141310/
%F ELMA_1983__38_141310