@article{TM_2023_321_a0,
     author = {E. R. Avakov and G. G. Magaril-Il'yaev},
     title = {Controllability and {Second-Order} {Necessary} {Conditions} for {Local} {Infimum} {Trajectories} in {Optimal} {Control}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {7--30},
     publisher = {mathdoc},
     volume = {321},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2023_321_a0/}
}