@article{JOLT_1998_8_1_a7,
     author = {A. Schmucker and G. Czichowski},
     title = { Symmetric {Algebras} and {Normal} {Forms} of {Third} {Order} {Ordinary} {Differential} {Equations}},
     journal = {Journal of Lie Theory},
     pages = {129--138},
     year = {1998},
     volume = {8},
     number = {1},
     doi = {10.5802/jolt.133},
     zbl = {0897.34013},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.133/}
}