@article{JOLT_2024_34_1_a4,
     author = {Xuefeng Zhao and Yong 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},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2024_34_1_a4/}
}