@article{SIGMA_2007_3_a29,
     author = {Jos\'e F. Cari\~nena and Manuel F. Ra\~nada and Mariano Santander},
     title = {A~Super-Integrable {Two-Dimensional} {Non-Linear} {Oscillator} with an {Exactly} {Solvable} {Quantum} {Analog}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2007},
     volume = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2007_3_a29/}
}