%0 Journal Article %A Haret C. Rosu %A Kira V. Khmelnytskaya %T Shifted Riccati Procedure: Application to Conformal Barotropic FRW Cosmologies %J Symmetry, integrability and geometry: methods and applications %D 2011 %V 7 %U http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a12/ %G en %F SIGMA_2011_7_a12