%0 Journal Article
%A J. S. Ratti
%A Y. -F. Lin
%T A functional equation involving f and $f^{-1}$.
%J Colloquium Mathematicum
%D 1990
%P 519-523
%V 60
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm-60-61-2-519-523/
%R 10.4064/cm-60-61-2-519-523
%G en
%F 10_4064_cm_60_61_2_519_523