@article{AA_1996_8_2_a1,
     author = {V. S. Buslaev and A. A. Fedotov},
     title = {The {Harper} equation: monodromization without quasiclassics},
     journal = {Algebra i analiz},
     pages = {65--97},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1996_8_2_a1/}
}