@article{MZM_1979_25_3_a7,
     author = {D. I. Gurevich},
     title = {Generalized displacement operators with a~right infinitesimal {Sturm{\textendash}Liouville} operator},
     journal = {Matemati\v{c}eskie zametki},
     pages = {393--408},
     year = {1979},
     volume = {25},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1979_25_3_a7/}
}