@article{1183496846,
author = {Duncan, D. C.},
title = {A self-dual septimic possessing seven of each kind of the simple singularities, and autopolar by seven rectangular hyperbolas and a circle},
journal = {Bull. Amer. Math. Soc.},
volume = {39},
number = {12},
year = {1933},
pages = { 589-592},
language = {en},
url = {http://dml.mathdoc.fr/item/1183496846}
}
Duncan, D. C. A self-dual septimic possessing seven of each kind of the simple singularities, and autopolar by seven rectangular hyperbolas and a circle. Bull. Amer. Math. Soc., Tome 39 (1933) no. 12, pp. 589-592. http://gdmltest.u-ga.fr/item/1183496846/