@article{COCV_2021__27_S1_A31_0,
     author = {Agrachev, Andrei A. and Boarotto, Francesco},
     title = {Normal forms for the endpoint map near nice singular curves for rank-two distributions},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     year = {2021},
     publisher = {EDP-Sciences},
     volume = {27},
     doi = {10.1051/cocv/2020089},
     mrnumber = {4222153},
     zbl = {1470.53029},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/cocv/2020089/}
}