Stupel M, Sigler A, Weissman S. Finding the Location of the Axes, the Vertices and the Foci of a Parabola, an Ellipse and a Hyperbola Using a Straightedge and a Compass. amacs-v4 [Internet]. 20Nov.2019 [cited 19Jun.2026];:85-0. Available from: https://stm1.bookpi.org/index.php/amacs-v4/article/view/644