@article{10_21136_MB_2018_0091_17,
     author = {Kostov, Vladimir Petrov},
     title = {Polynomials, sign patterns and {Descartes'} rule of signs},
     journal = {Mathematica Bohemica},
     pages = {39--67},
     publisher = {mathdoc},
     volume = {144},
     number = {1},
     year = {2019},
     doi = {10.21136/MB.2018.0091-17},
     mrnumber = {3934197},
     zbl = {07088835},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2018.0091-17/}
}