TY - JOUR AU - Güngör, Faruk AU - Kuru, Sengul AU - Negro Vadillo, Francisco Javier AU - Nieto Calzada, Luis Miguel PY - 2017 UR - http://uvadoc.uva.es/handle/10324/22866 LA - eng TI - Heisenberg-type higher order symmetries of superintegrable systems separable in cartesian coordinates ER -