@article{INTO_2023_224_a0,
     author = {A. V. Arguchintsev and V. P. Poplevko},
     title = {Variation optimality condition of a boundary control in a composite model of linear differential equations of different types},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {3--9},
     publisher = {mathdoc},
     volume = {224},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2023_224_a0/}
}