@article{CMFD_2023_69_3_a1,
     author = {N. O. Ivanov},
     title = {Smoothness of generalized solutions of a boundary-value problem for a second-order differential-difference equation with mixed boundary conditions},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {399--417},
     publisher = {mathdoc},
     volume = {69},
     number = {3},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2023_69_3_a1/}
}