@article{SJPAM_2002__2002_1_227105, author = {Horwitz, Alan}, title = {Finding ellipses and hyperbolas tangent to two, three, or four given lines.}, journal = {Southwest Journal of Pure and Applied Mathematics [electronic only]}, pages = {6}, publisher = {mathdoc}, volume = {2002}, number = {1}, year = {2002}, zbl = {1028.51018}, language = {en}, url = {https://geodesic-test.mathdoc.fr/item/SJPAM_2002__2002_1_227105/} }