%0 Journal Article %A Franchi, Bruno %A Lu, Guozhen %A Wheeden, Richard L. %T Representation formulas and weighted Poincaré inequalities for Hörmander vector fields %J Annales de l'Institut Fourier %D 1995 %P 577-604 %V 45 %N 2 %I Association des Annales de l’institut Fourier %U http://www.numdam.org/articles/10.5802/aif.1466/ %R 10.5802/aif.1466 %G en %F AIF_1995__45_2_577_0