%0 Journal Article
%A B. Pettis
%T On Nikaidô's proof of the invariant mean-value theorem
%J Studia Mathematica
%D 1969
%P 193-196
%V 33
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4064/sm-33-2-193-196/
%R 10.4064/sm-33-2-193-196
%G en
%F 10_4064_sm_33_2_193_196