%0 Journal Article %A Marko Roczen %T Recognition of simple singularities in positive characteristic. %J Mathematische Zeitschrift %D 1992 %P 641-654 %V 210 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1992__210_1_174425/ %F MZ_1992__210_1_174425