@article{COCV_2021__27_1_A39_0,
     author = {Le Donne, Enrico and Z\"ust, Roger},
     title = {Space of signatures as inverse limits of {Carnot} groups},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     year = {2021},
     publisher = {EDP-Sciences},
     volume = {27},
     doi = {10.1051/cocv/2021040},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/cocv/2021040/}
}