%0 Journal Article %A Gawronski, W. %T A Lower Bound for the Number of Negative Zeros of Power Series %J Canadian mathematical bulletin %D 1979 %P 47-52 %V 22 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1979-007-5/ %R 10.4153/CMB-1979-007-5 %F 10_4153_CMB_1979_007_5