%0 Journal Article
%A George Adams
%T Conchoid and Negative Circle. (Continued).
%J Elemente der Mathematik
%D 1954
%P 9-16
%V 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ELMA_1954__9_140601/
%F ELMA_1954__9_140601