@article{MZM_1997_62_4_a18,
     author = {B. Z. Shapiro},
     title = {On the number of connected components of the space of trigonometric polynomials of degree $n$ with $2n$ different critical values},
     journal = {Matemati\v{c}eskie zametki},
     pages = {635--640},
     publisher = {mathdoc},
     volume = {62},
     number = {4},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1997_62_4_a18/}
}