%0 Electronic Article %A Aretz-Nellesen, Nicole %A Grepl, Martin A. %A Veroy-Grepl, Karen %T 3D-VAR for Parametrized Partial Differential Equations: A Certified Reduced Basis Approach %M RWTH-2021-01501 %D 2019 %F PUB:(DE-HGF)25 %9 Preprint %R 10.48550/ARXIV.1905.05817 %U https://publications.rwth-aachen.de/record/811893