@article{MZM_1992_51_4_a1,
     author = {K. Kh. Boimatov},
     title = {Asymptotic behavior of the spectra of second-order non-self-adjoint systems of differential operators},
     journal = {Matemati\v{c}eskie zametki},
     pages = {8--16},
     publisher = {mathdoc},
     volume = {51},
     number = {4},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1992_51_4_a1/}
}