@article{COCV_2021__27_1_A34_0,
     author = {Ardentov, A. A. and Lokutsievskiy, L. V. and Sachkov, Yu. L.},
     title = {Extremals for a series of {sub-Finsler} problems with 2-dimensional control via convex trigonometry},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     year = {2021},
     publisher = {EDP-Sciences},
     volume = {27},
     doi = {10.1051/cocv/2021024},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/cocv/2021024/}
}