%0 Journal Article %A V. A. Geiler %A V. A. Margulis %T Structure of the spectrum of a bloch electron in a magnetic field in a two-dimensional lattice %J Teoretičeskaâ i matematičeskaâ fizika %D 1984 %P 140-149 %V 61 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1984_61_1_a12/ %G ru %F TMF_1984_61_1_a12