@article{EJDE_2005__2005__a258,
     author = {Persson,  Mikael},
     title = {On the {Aharonov-Casher} formula for different self-adjoint extensions of the {Pauli} operator with singular magnetic field},
     journal = {Electronic journal of differential equations},
     year = {2005},
     volume = {2005},
     zbl = {1070.81051},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a258/}
}