@article{JOLT_2003_13_1_a12,
     author = {G. Mari Beffa},
     title = {Relative and {Absolute} {Differential} {Invariants} for {Conformal} {Curves}},
     journal = {Journal of Lie Theory},
     pages = {213--245},
     year = {2003},
     volume = {13},
     number = {1},
     doi = {10.5802/jolt.299},
     zbl = {1028.53015},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.299/}
}