@article{VSGU_2021_27_3_a3,
     author = {M. V. Shamolin},
     title = {Problems of differential and topological diagnostics. {Part} 7. {Differential} diagnostics in some systems of direct and indirect control},
     journal = {Vestnik Samarskogo universiteta. Estestvennonau\v{c}na\^a seri\^a},
     pages = {31--45},
     publisher = {mathdoc},
     volume = {27},
     number = {3},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGU_2021_27_3_a3/}
}