%0 Journal Article
%A Wei, Ting
%A Xian, Jun
%T Variational method for a backward problem for a time-fractional diffusion equation
%J ESAIM: Mathematical Modelling and Numerical Analysis 
%D 2019
%P 1223-1244
%V 53
%N 4
%I EDP-Sciences
%U http://www.numdam.org/articles/10.1051/m2an/2019019/
%R 10.1051/m2an/2019019
%G en
%F M2AN_2019__53_4_1223_0