@article{ZNSL_2024_533_a4,
     author = {M. N. Demchenko},
     title = {Existence of a solution to the nonhomogeneous ultrahyperbolic equation},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {77--100},
     year = {2024},
     volume = {533},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2024_533_a4/}
}