%0 Journal Article %A E. G. Kalnins %A Willard Miller. Jr. %A Sarah Post %T Models for Quadratic Algebras Associated with Second Order Superintegrable Systems in 2D %J Symmetry, integrability and geometry: methods and applications %D 2008 %V 4 %U http://geodesic.mathdoc.fr/item/SIGMA_2008_4_a7/ %G en %F SIGMA_2008_4_a7