@article{FAA_1977_11_1_a13,
     author = {V. A. Mikhailets},
     title = {Asymptotics of the eigenvalues of a {Sturm{\textendash}Liouville} equation with variable operator coefficients},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {71--72},
     year = {1977},
     volume = {11},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1977_11_1_a13/}
}