@article{CHFMJ_2024_9_4_a4,
     author = {A. I. Kozhanov and G. R. Ashurova},
     title = {Third-order differential equations with multiple characteristics: degeneration and unknown external influence},
     journal = {\v{C}el\^abinskij fiziko-matemati\v{c}eskij \v{z}urnal},
     pages = {585--595},
     publisher = {mathdoc},
     volume = {9},
     number = {4},
     year = {2024},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHFMJ_2024_9_4_a4/}
}