@article{IM2_1976_10_1_a8,
     author = {P. A. Mishnaevskii},
     title = {On the spectral theory for the {Sturm{\textendash}Liouville} equation with operator coefficient},
     journal = {Izvestiya. Mathematics},
     pages = {145--180},
     year = {1976},
     volume = {10},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1976_10_1_a8/}
}