%0 Journal Article %A Ballico, Edoardo %T On the real \(X\)-ranks of points of \(\mathbb{P}^n(\mathbb{R})\) with respect to a real variety \(X\subset\mathbb{P}^n\) %J Annales Universitatis Mariae Curie-Skłodowska. Mathematica %D 2010 %V 54 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUM_2010_54_2_a7/ %G en %F AUM_2010_54_2_a7