@article{IVM_1976_10_a7,
     author = {G. V. Martynenko},
     title = {A~property of singularly perturbed differential operators with almost periodic coefficients},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {47--51},
     publisher = {mathdoc},
     number = {10},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1976_10_a7/}
}