@article{JOLT_2005_15_1_a9,
     author = {R. J. Alonso-Blanco and D. Bl\'azquez-Sanz},
     title = {The {Only} {Global} {Contact} {Transformations} of {Order} {Two} or {More} are {Point} {Transformations}},
     journal = {Journal of Lie Theory},
     pages = {135--143},
     year = {2005},
     volume = {15},
     number = {1},
     doi = {10.5802/jolt.365},
     zbl = {1073.58006},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.365/}
}