Gaussian Curvature, Mirrors, and Maps. - Pedro Roitman (Am. Math. Mon., 2012)

New Invariants of Poncelet-Jacobi Bicentric Polygons. - Pedro Roitman; Ronaldo Garcia; Dan Reznik (CoRR, 2021)

Discovering new Properties and Invariants of Harmonic Polygons. - Ronaldo Garcia; Dan Reznik; Pedro Roitman (CoRR, 2021)