@article{ZVMMF_1993_33_4_a9,
     author = {Kh. D. Ikramov},
     title = {The monotonicity of the eigenvalues of doubly symmetric matrices},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {620--624},
     publisher = {mathdoc},
     volume = {33},
     number = {4},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1993_33_4_a9/}
}