@article{IVM_1983_5_a7,
     author = {M. V. Levit and A. N. Churilov},
     title = {Estimates of some functionals of solutions of matrix inequalities encountered in control theory},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {53--59},
     publisher = {mathdoc},
     number = {5},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1983_5_a7/}
}