%0 Journal Article %A Horst Martini %A Anatoly Shcherba %T On the stability of the unit circle with minimal self-perimeter in normed planes %J Colloquium Mathematicum %D 2013 %P 69-87 %V 131 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm131-1-7/ %R 10.4064/cm131-1-7 %G en %F 10_4064_cm131_1_7