@article{IVM_1990_8_a4,
     author = {I. S. Lomov},
     title = {Properties of root functions of the {Sturm{\textendash}Liouville} operator that are discontinuous on an everywhere dense set},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {35--44},
     year = {1990},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1990_8_a4/}
}