%0 Journal Article %A Keil, Tim %A Mechelli, Luca %A Ohlberger, Mario %A Schindler, Felix %A Volkwein, Stefan %T A non-conforming dual approach for adaptive Trust-Region reduced basis approximation of PDE-constrained parameter optimization %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2021 %P 1239-1269 %V 55 %N 3 %I EDP-Sciences %U https://www.numdam.org/articles/10.1051/m2an/2021019/ %R 10.1051/m2an/2021019 %G en %F M2AN_2021__55_3_1239_0