TY  - JOUR
AU  - Xiazhi Hao
TI  - Nonlocal symmetries of some nonlinear partial differential equations with third-order Lax pairs
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 2021
SP  - 139
EP  - 148
VL  - 206
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_2021_206_2_a0/
LA  - ru
ID  - TMF_2021_206_2_a0
ER  -