@article{TRSPY_1989_190_a2,
     author = {A. P. Buslaev},
     title = {Vectors with continuous sign and nonlinear spectral analysis of matrices},
     journal = {Informatics and Automation},
     pages = {40--48},
     publisher = {mathdoc},
     volume = {190},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1989_190_a2/}
}