%0 Journal Article
%A D. Suryanarayana
%T New Inversion Properties of ... and ...*.
%J Elemente der Mathematik
%D 1971
%P 136-137
%V 26
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ELMA_1971__26_141033/
%F ELMA_1971__26_141033