@article{GDZPPN002031191,
title = {On a geometric property of Lemniscates.},
journal = {Aequationes mathematicae},
volume = {18},
year = {1978},
pages = {344-347},
zbl = {0383.30001},
url = {http://dml.mathdoc.fr/item/GDZPPN002031191}
}
Hwang, J.S.; Erdös, Paul. On a geometric property of Lemniscates.. Aequationes mathematicae, Tome 18 (1978) pp. 344-347. http://gdmltest.u-ga.fr/item/GDZPPN002031191/