%0 Journal Article
%A Liu, Hailin
%A Lou, Bengong
%A Ling, Bo
%T Tetravalent half-arc-transitive graphs of order $p^2q^2$
%J Czechoslovak Mathematical Journal
%D 2019
%P 391-401
%V 69
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2019.0335-17/
%R 10.21136/CMJ.2019.0335-17
%G en
%F 10_21136_CMJ_2019_0335_17