@article{IM2_1982_18_3_a5,
     author = {A. V. Dmitruk},
     title = {A~condition of {Jacobi} type for a~quadratic form to be nonnegative on a~finite-faced cone},
     journal = {Izvestiya. Mathematics },
     pages = {525--535},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {1982},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1982_18_3_a5/}
}