@article{JOLT_2024_34_1_a4,
     author = {X. Zhao and Y. Li},
     title = {\ensuremath{\sigma}-Symmetries and {First} {Integral} of {Differential} {Equations}},
     journal = {Journal of Lie Theory},
     pages = {93--112},
     year = {2024},
     volume = {34},
     number = {1},
     doi = {10.5802/jolt.1328},
     zbl = {1540.34077},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.1328/}
}