%0 Journal Article %A Šilhavý, M. %T Rank 1 convex hulls of isotropic functions in dimension 2 by 2 %J Mathematica Bohemica %D 2001 %P 521-529 %V 126 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2001.134029/ %R 10.21136/MB.2001.134029 %G en %F 10_21136_MB_2001_134029