%0 Journal Article %A A. Kh. Stash %A A. E. Artisevich %T Existence of infinite everywhere discontinuous spectra of upper indicators in changes of signs, zeros and roots for third order differential equations %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2023 %P 16-22 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2023_5_a2/ %G ru %F VMUMM_2023_5_a2