@article{MZM_1974_15_2_a12,
     author = {Yu. B. Orochko},
     title = {Sufficient conditions for the self-adjointness of the {Sturm--Liouville} operator},
     journal = {Matemati\v{c}eskie zametki},
     pages = {271--280},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1974_15_2_a12/}
}