%0 Journal Article %A Upke-Walther Schmincke %T Essential Selfadjointness of Dirac Operators with a Strongly Singular Potential. %J Mathematische Zeitschrift %D 1972 %P 71-81 %V 126 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1972__126_171722/ %F MZ_1972__126_171722