@article{05555902, title = {Structure theory for second order 2D superintegrable systems with 1-parameter potentials.}, journal = {SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]}, volume = {5}, year = {2009}, doi = {10.3842/SIGMA.2009.008}, zbl = {1195.81070}, language = {en}, url = {http://dml.mathdoc.fr/item/05555902} }
Kalnins, Ernest G.; Kress, Jonathan M.; Jr., Willard Miller; Post, Sarah. Structure theory for second order 2D superintegrable systems with 1-parameter potentials.. SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only], Tome 5 (2009) . doi : 10.3842/SIGMA.2009.008. http://gdmltest.u-ga.fr/item/05555902/