Paris Pamfilios, Tripolars and parabolas,
Forum Geometricorum, 12 (2012) 287--300.

Abstract.   Starting with an analysis of the configuration of chords of contact points with two lines, defined on conics circumscribing a triangle and tangent to these lines, we prove properties relating to the case the conics are parabolas and a resulting method to construct the parabola tangent to four lines.

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