%0 Journal Article
%A Qi Feng
%T An improper integral, the beta function, the Wallis ratio, and the Catalan numbers
%J Problemy analiza
%D 2018
%P 104-115
%V 7
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PA_2018_7_1_a6/
%G en
%F PA_2018_7_1_a6