@article{VMJ_2019_21_2_a3,
     author = {S. I. Mitrokhin},
     title = {On the study of the spectrum of a functional-differential operator with a summable potential},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {38--57},
     year = {2019},
     volume = {21},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2019_21_2_a3/}
}