@article{FAA_2002_36_2_a4,
     author = {A. A. Oblomkov},
     title = {Isoenergy {Spectral} {Problem} for {Multidimensional} {Difference} {Operators}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {45--61},
     publisher = {mathdoc},
     volume = {36},
     number = {2},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2002_36_2_a4/}
}