%0 Journal Article %A V. N. Kolokoltsov %T Schr\"odinger operators with singular potentials and magnetic fields %J Sbornik. Mathematics %D 2003 %P 897-917 %V 194 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2003_194_6_a5/ %G en %F SM_2003_194_6_a5