%0 Journal Article %A Bourgeois, Laurent %A Recoquillay, Arnaud %T A mixed formulation of the Tikhonov regularization and its application to inverse PDE problems %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2018 %P 123-145 %V 52 %N 1 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2018008/ %R 10.1051/m2an/2018008 %G en %F M2AN_2018__52_1_123_0