TY - EJOUR AU - Aretz-Nellesen, Nicole AU - Grepl, Martin A. AU - Veroy-Grepl, Karen TI - 3D-VAR for Parametrized Partial Differential Equations: A Certified Reduced Basis Approach M1 - RWTH-2021-01501 PY - 2019 LB - PUB:(DE-HGF)25 DO - DOI:10.48550/ARXIV.1905.05817 UR - https://publications.rwth-aachen.de/record/811893 ER -