@article{TMF_1991_89_1_a0,
     author = {B. S. Pavlov and S. V. Frolov},
     title = {Spectral identities for band spectrum in one-dimensional case},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {3--10},
     publisher = {mathdoc},
     volume = {89},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1991_89_1_a0/}
}