@article{urn:eudml:doc:43477, title = {S\^obre elipses homot\'eticas.}, journal = {Gaceta Matem\'atica}, volume = {25}, year = {1973}, pages = {136-138}, language = {pt}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:43477} }
Machado Cardoso, Jayme. Sôbre elipses homotéticas.. Gaceta Matemática, Tome 25 (1973) pp. 136-138. http://gdmltest.u-ga.fr/item/urn:eudml:doc:43477/