@article{PFMT_2019_2_a11,
     author = {A. A. Kozlov and K. D. Kalita},
     title = {The invariance of property of principal leading minors{\textquoteright} of the square matrix positivity in the similarity transformation},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {81--87},
     publisher = {mathdoc},
     number = {2},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2019_2_a11/}
}