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Bernard Gibert, Asymptotic directions of pivotal isocubics,
Forum Geometricorum, 14 (2014) 173--189.
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Abstract. Given the pivotal isocubic K = p(Omega,P), we seek all the other isocubics K_1 = pK(Omega_1,P_1) with pole Omega_1 and pivot P_1 which have the same points at infinity, i.e., the same asymptotic directions. We also examine the connection with the Simson lines concurring at a certain given point.

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