@article{TMF_2021_206_2_a0,
     author = {Xiazhi Hao},
     title = {Nonlocal symmetries of some nonlinear partial differential equations with third-order {Lax} pairs},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {139--148},
     publisher = {mathdoc},
     volume = {206},
     number = {2},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2021_206_2_a0/}
}