%0 Journal Article %A Persson, Mikael %T On the Aharonov-Casher formula for different self-adjoint extensions of the Pauli operator with singular magnetic field %J Electronic Journal of Differential Equations %D 2005 %V 2005 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a58/ %G en %F EJDE_2005__2005__a58