@article{VTAMU_2022_27_139_a1,
     author = {A. V. Bogatov and A. V. Gilev and L. S. Pulkina},
     title = {A problem with a non-local condition for a fourth-order equation with multiple characteristics},
     journal = {Vestnik rossijskih universitetov. Matematika},
     pages = {214--230},
     publisher = {mathdoc},
     volume = {27},
     number = {139},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTAMU_2022_27_139_a1/}
}