Juan Monterde, David Rochera. Holditch's Ellipse Unveiled. The American Mathematical Monthly, 124(5):403-421, 2017. [doi]
@article{MonterdeR17,
title = {Holditch's Ellipse Unveiled},
author = {Juan Monterde and David Rochera},
year = {2017},
url = {https://www.tandfonline.com/doi/abs/10.4169/amer.math.monthly.124.5.403},
researchr = {https://researchr.org/publication/MonterdeR17},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {124},
number = {5},
pages = {403-421},
}