@article{VUU_2016_26_4_a8,
     author = {V. N. Ushakov and A. A. Ershov},
     title = {On the solution of control problems with fixed terminal time},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {543--564},
     year = {2016},
     volume = {26},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2016_26_4_a8/}
}