@article{FAA_2015_49_3_a5,
     author = {B. O. Vasilevskii},
     title = {A {Sufficient} {Nonsingularity} {Condition} for a {Discrete} {Finite-Gap} {One-Energy} {Two-Dimensional} {Schr\"odinger} {Operator} on the {Quad-Graph}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {65--70},
     publisher = {mathdoc},
     volume = {49},
     number = {3},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2015_49_3_a5/}
}