TY  - JOUR
AU  - V. Sh. Roitenberg
TI  - Classification of periodic differential equations by degrees of non-roughniss
JO  - Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika
PY  - 2022
SP  - 52
EP  - 59
VL  - 14
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VYURM_2022_14_3_a5/
LA  - ru
ID  - VYURM_2022_14_3_a5
ER  -