@article{CMFD_2020_66_3_a0,
     author = {A. M. Savchuk and I. V. Sadovnichaya},
     title = {Spectral analysis of one-dimensional {Dirac} system with summable potential and {Sturm{\textendash}Liouville} operator with distribution coefficients},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {373--530},
     year = {2020},
     volume = {66},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2020_66_3_a0/}
}