@article{TMF_2020_205_3_a1,
     author = {T. H. Rasulov and E. B. Dilmurodov},
     title = {Infinite number of eigenvalues of $2\times 2$ operator matrices: {Asymptotic} discrete spectrum},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {368--390},
     publisher = {mathdoc},
     volume = {205},
     number = {3},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2020_205_3_a1/}
}