@article{VMUMM_2023_5_a2,
     author = {A. Kh. Stash and A. E. Artisevich},
     title = {Existence of infinite everywhere discontinuous spectra of upper indicators in changes of signs, zeros and roots for third order differential equations},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {16--22},
     year = {2023},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2023_5_a2/}
}