TY  - JOUR
AU  - A. I. Kozhanov
AU  - G. R. Ashurova
TI  - Third-order differential equations with multiple characteristics: degeneration and unknown external influence
JO  - Čelâbinskij fiziko-matematičeskij žurnal
PY  - 2024
SP  - 585
EP  - 595
VL  - 9
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CHFMJ_2024_9_4_a4/
LA  - ru
ID  - CHFMJ_2024_9_4_a4
ER  -