%0 Journal Article %A Antoni Sym %A Adam Szereszewski %T On Darboux's Approach to $R$-Separability of Variables %J Symmetry, integrability and geometry: methods and applications %D 2011 %V 7 %U http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a94/ %G en %F SIGMA_2011_7_a94