%0 Journal Article %A Kevin M. Pilgrim %T Bounded geometry of quadrilaterals and variation of multipliers for rational maps %J Fundamenta Mathematicae %D 2004 %P 137-150 %V 182 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm182-2-4/ %R 10.4064/fm182-2-4 %G en %F 10_4064_fm182_2_4