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Jessop, C. M.; Duncan, M. J.; Levison, H. F. (1997), "Bending Instabilities in Homogenous Oblate Spheroidal Galaxy Models", The Astrophysical Journal, 489 (1): 49–62, Bibcode:1997ApJ...489...49J, doi:10.1086/304751, S2CID120230527
Jessop, C. M.; Duncan, M. J.; Levison, H. F. (1997), "Bending Instabilities in Homogenous Oblate Spheroidal Galaxy Models", The Astrophysical Journal, 489 (1): 49–62, Bibcode:1997ApJ...489...49J, doi:10.1086/304751, S2CID120230527
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