K. R. S. Sastry, Triangles with Special Isotomic Conjugate Pairs,
Forum Geometricorum, 4 (2004) 73--80.

Abstract: We study the condition for the line joining a pair of isotomic conjugates to be parallel to a side of a given triangle. We also characterize triangles in which the line joining a specified pair of isotomic conjugates is parallel to a side.

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