%0 Journal Article %A Feng, Lihong %A Benner, Peter %T On error estimation for reduced-order modeling of linear non-parametric and parametric systems %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2021 %P 561-594 %V 55 %N 2 %I EDP-Sciences %U https://www.numdam.org/articles/10.1051/m2an/2021001/ %R 10.1051/m2an/2021001 %G en %F M2AN_2021__55_2_561_0