@article {boarotto2017homotopy,
	title = {Homotopy properties of horizontal path spaces and a theorem of Serre in subriemannian geometry},
	journal = {Communications in Analysis and Geometry},
	volume = {25},
	number = {2},
	year = {2017},
	pages = {269{\textendash}301},
	publisher = {International Press of Boston},
	doi = {10.4310/CAG.2017.v25.n2.a1},
	author = {Francesco Boarotto and Antonio Lerario}
}
