%0 Journal Article %A Mayer, Uwe F. %T One-sided Mullins-Sekerka flow does not preserve convexity %J Electronic journal of differential equations %D 1993 %V 1993 %N 8 %U http://geodesic.mathdoc.fr/item/EJDE_1993__1993_8_a0/ %G en %F EJDE_1993__1993_8_a0