@article{MZM_1967_1_5_a10,
     author = {L. B. Zelenko},
     title = {Discreteness conditions for the spectrum of the {Sturm-Liouville} operator in a space of vector functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {583--588},
     publisher = {mathdoc},
     volume = {1},
     number = {5},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1967_1_5_a10/}
}