@article{ZNSL_2021_506_a14,
     author = {K. S. Sedov and A. A. Fedotov},
     title = {On monodromy matrices for a difference {Schr\"odinger} equation on the real line with a small periodic potential},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {223--244},
     publisher = {mathdoc},
     volume = {506},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2021_506_a14/}
}