@article{10_4064_ap100_1_3,
     author = {Xiangdong Yang and Caifeng Yi and Jin Tu},
     title = {A note on the number of zeros of polynomials in an annulus},
     journal = {Annales Polonici Mathematici},
     pages = {25--31},
     publisher = {mathdoc},
     volume = {100},
     number = {1},
     year = {2011},
     doi = {10.4064/ap100-1-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap100-1-3/}
}