TY  - JOUR
AU  - B. I. Anan'ev
TI  - On some complements to Liu's theory
JO  - Trudy Instituta matematiki i mehaniki
PY  - 2024
SP  - 5
EP  - 20
VL  - 30
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/TIMM_2024_30_1_a0/
LA  - ru
ID  - TIMM_2024_30_1_a0
ER  -