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Continue to ChatDDA 2015 - p-ellipse Orbit Approximations, Lindblad Zones, and Resonant Waves in Galaxy Disks https://alpheratz.net/dda-2015-p-ellipse-orbit-approximations/
DDA 2015 - p-ellipse Orbit Approximations, Lindblad Zones, and Resonant Waves in Galaxy Disks https://alpheratz.net/dda-2015-p-ellipse-orbit-approximations/