%0 Journal Article %A Ambrosio, Luigi %T The Flow Associated to Weakly Differentiable Vector Fields: Recent Results and Open Problems %J Bollettino della Unione matematica italiana %D 2007 %P 25-41 %V 10B %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/BUMI_2007_8_10B_1_a1/ %G en %F BUMI_2007_8_10B_1_a1