Merritt, D.; Valluri, M. (September 1999), "Resonant Orbits in Triaxial Galaxies", The Astronomical Journal, 118 (3): 1177–1189, arXiv:astro-ph/9903452, Bibcode:1999AJ....118.1177M, doi:10.1086/301012, S2CID 14621588 /wiki/David_Merritt ↩