@article{JOLT_2013_23_4_a4,
     author = {Cuiling Luo and Xiaoping Xu},
     title = {Graded {Oscillator} {Generalizations} of the {Classical} {Theorem} on {Harmonic} {Polynomials}},
     journal = {Journal of Lie Theory},
     pages = {979--1003},
     year = {2013},
     volume = {23},
     number = {4},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2013_23_4_a4/}
}