@article{VUU_2021_31_3_a8,
     author = {A. A. Uspenskii and P. D. Lebedev},
     title = {On the structure of the singular set of solutions in one class of {3D} time-optimal control problems},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {471--486},
     publisher = {mathdoc},
     volume = {31},
     number = {3},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2021_31_3_a8/}
}