@article{JOLT_2008_18_1_a6,
     author = {G. Mar{\'\i} Beffa and J. A. Sanders},
     title = {Transvection and {Differential} {Invariants} of {Parametrized} {Curves}},
     journal = {Journal of Lie Theory},
     pages = {93--123},
     year = {2008},
     volume = {18},
     number = {1},
     zbl = {1140.13303},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2008_18_1_a6/}
}