@article{AA_1991_3_3_a0,
     author = {V. A. Geiler},
     title = {The two-dimensional {Schr\"odinger} operator with a homogeneous magnetic field and its perturbations by periodic zero-range potentials},
     journal = {Algebra i analiz},
     pages = {1--48},
     publisher = {mathdoc},
     volume = {3},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1991_3_3_a0/}
}