Jan Wiersig. Ellipsoidal Billiards with isotropic harmonic Potentials. I. J. Bifurcation and Chaos, 10(9):2075-2098, 2000. [doi]
@article{Wiersig00, title = {Ellipsoidal Billiards with isotropic harmonic Potentials}, author = {Jan Wiersig}, year = {2000}, doi = {10.1142/S0218127400001316}, url = {http://dx.doi.org/10.1142/S0218127400001316}, researchr = {https://researchr.org/publication/Wiersig00}, cites = {0}, citedby = {0}, journal = {I. J. Bifurcation and Chaos}, volume = {10}, number = {9}, pages = {2075-2098}, }