%0 Journal Article %A CARL HYLTÉN-CAVALLIUS %T Some extremal problems for trigonometricaland complex polynomials %J Mathematica Scandinavica %D 1955 %P 5-20 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1955__3_165562/ %F MS2_1955__3_165562